- Ph.D. (Geography), University Of Victoria, Canada, 1994
- He teaches both undergraduate and graduate courses in both Thai and international programs such as human ecology, human geography, political ecology, development geography.
- His interests include community-based natural resource management, agrarian transformation, tourism and development, environmental governance, ethnic relations, land relations in Southeast Asia and border studies.
- Wittayapak, Chusak, Baird, Ian, (2018).“Communal land titling dilemmas in northern Thailand: From community forestry to beneficial yet risky and uncertain options”. Land Use Policy. Volume 71, February 2018:pp. 320-328
- Wittayapak, Chusak. (2012). “Who Are the Farmers: Livelihood Trajectories in a Northern Thai Village” in Jonathan Rigg and Peter Vadergeest (eds.) Revisiting Rural Places: Pathways to Poverty and Prosperity in Southeast Asia. Singapore: National University of Singapore Press. pp. 261-283.