Van Rooyen, P.H. 1985 Swart Mannekrag in Suid-Afrika (Black Manpower in South Africa) University Publishers, Stellenbosch.
Van Rooyen, P.H. 1985 Black Workers and Changing Industrial Relations in South Africa University Publishers, Stellenbosch.
Nel, P.S. & Van Rooyen, P.H. 1985 Worker Representation in South Africa Academica, Pretoria.
Nel, P.S. & P.H. van Rooyen 1991 South African Industrial Relations Academica, Pretoria.
Van Rooyen, P.H. 1995 Gobabis:  A Brief History of the Town and Region John Meinert Printers, Windhoek.

Van Rooyen, P.H. 1973 Draak op die Erf (Dragon in the Yard) HAUM, Pretoria.
Van Rooyen, Piet 1983 Rondom ‘n Boorvuur (Around a Bore Fire) Tafelberg, Cape Town.
Van Rooyen, Piet 1994 Die Spoorsnyer (The Tracker) Tafelberg, Cape Town.
Van Rooyen, Piet 1995 Agter ‘n Eland aan (Following an Eland) Queillerie, Cape Town.
Van Rooyen, Piet 1997 Die Olifantjagters (The Elephant Hunters) Tafelberg, Cape Town.
Van Rooyen, Piet 2001 Gif (Venom) Protea Boekhuis, Pretoria.
Van Rooyen, Piet 2002 Die Brandende Man (The Burning Man) Protea Boekhuis, Pretoria.
Van Rooyen, Piet 2002 Goedsmoeds (Cheerfully) Protea Boekhuis, Pretoria.
Van Rooyen, Piet & Coetzee, Christoffel  2004 Toewaaisand (Windswept Sand) Protea Boekhuis, Pretoria.
Van Rooyen, Piet 2005 Akwarius (Aquarius) Tafelberg, Cape Town.
Van Rooyen, Piet 2008 Kwansuis (Ostensibly) Human & Rousseau, Cape Town.
Van Rooyen, Piet 2010 Etosha – ‘n Roman (Etosha – a Novel) Human & Rousseau, Cape Town

Van Rooyen, P.H. 1999 Recent Developments in the Southern African Economy International Summer School, University of Schmalkalden, Germany
Van Rooyen, P.H. 2002 Globalization, Inequality and Conflict University of Otago Foreign Policy School, Dunedin, New Zealand
Van Rooyen, P.H. and du Pisani, A. 2004 Literature as Colonising and Decolonising Agent: the Case of Namibian Racial Imagery in Select Afrikaans and English Novels in 1904-2004: Decontaminating the Namibian Past Commemorative Conference, University of Namibia, Windhoek

Recent supervision of Master’s theses:

Ttitus, Simon 2010 The Application of Disciplinary Procedures in the Namibian Defence Force, Masters in Security and Strategic Studies, UNAM

Ndjoba, Karel 2010 Career Progression Training in the Namibian Defence Force, Masters in Security and Strategic Studies, UNAM

Hangula, Setson 2010 Performance Appraisal Systems in the Namibian Defence Force, Masters in Security and Strategic Studies, UNAM

Sem, Davidt 2010 Poverty Eradication in Havana, Katutura, MBA, UNAM

Van Rooyen, Piet 1987 We were in Paradise Underwater Magazine, March/April1987:10-12
Van Rooyen, Piet 1990 Dawie’s Last Dive Underwater Magazine, March/April 1990:41
Van Rooyen, Piet 2000 Die Woestynland Blom (The Desert Blooms) Insig, March 2000:42
Van Rooyen, Piet 2000 Die Groot Bul van Mudumu (The Big Bull of Mudumu) Magnum Magazine, March 2000:80-83
Van Rooyen, Piet 2000 Bergsebras van die Skurwe Namib (Mountain Zebras of the Rough Namib) Magnum Magazine, December 2000:47-50
Van Rooyen, Piet 2001 Die Jagter word die Gejagde (The Hunter becomes the Hunted) Magnum Magazine, March 2001:71-73
Van Rooyen, Piet 2001 The Big Bull of Mudumu HuntiNamibia, December 2001:18-22
Van Rooyen, Piet 2001 SAF Firstaar – Sire of Champions The Crabbett Influence (International Edition), November 2001:18
Van Rooyen, Piet 2002 ‘n Rooi Takbok in Nieu Zeeland (A Red Stag in New Zealand) Magnum Magazine, August 2002
Van Rooyen, Piet 2002 In the Footsteps of the Incas Heart Magazine, The Heart Foundation, South Africa, July 2002
Van Rooyen, Piet 2003 Red Stag in the Remarkables New Zealand Outdoor Magazine, June 2003
Van Rooyen, Piet 2003 The Bull Magnum Magazine, October 2003
Van Rooyen, Piet 2003 Big kudu trophies: Mutation or Genetics? HuntiNamibia, December 2003
Van Rooyen, Piet 2004 SAF Firstaar: vaar van Uithouritwenners (S.A.F. Firstaar – Sire off Endurance Winners) Drinkers of the Wind) Journal of the Arab Horse Society of South Africa, March 2004
Van Rooyen, Piet 2004 Horse Riding in the Khomas Hochland Flamingo, Air Namibia, Windhoek
Van Rooyen, Piet 2005 Ovambo Cuca Shops Getaway Magazine, February 2005
Van Rooyen, Piet 2006 Arnfried Blatt: an Artist of the Floating World Flamingo, Air Namibia, Windhoek, November 2006
Van Rooyen, Piet 2007 Sanga Cattle: Truly Indigenous Treasures Flamingo, Air Namibia, WindhoekVan Rooyen, Piet 2010 The Problem Lion of Noordgrens Magnum Magazine, May 2010