edited by Praipol Koomsup
Thammasat University Press, 1984
Buku Teks
World Health Organization (WHO)
World Health Organization, 2006
Buku Teks
International development research centre, 1974
Buku Teks
SPAFA Regional Centre Office, 1988
Buku Teks
Asia and the Pacific Programme of Educational Innovation for Development, Unesco Regional Office for Education in Asia and the Pacific, 1986
Buku Teks