Regional Institute of Higher Education and Development, 1974
Buku Teks
University of Singapore, 1974
Buku Teks
Tapingkae, Amnuay
Regional Institute of Higher Education and Development, 1974
Buku Teks
Association of Southeast Asian Institutions of Higher Learning
University of Indonesia Press , 1980
Buku Teks
Institute of sontheast Asian's Studies, 2000
Buku Teks