Nopakun, O. (1985). Thai concept of khit-pen for adult, and non-formal education. Asian and South Pacific Bureau of Adult Education.
Chicago-referens (17:e uppl.)Nopakun, Oonta. Thai Concept of Khit-pen for Adult, and Non-formal Education. Bankok: Asian and South Pacific Bureau of Adult Education, 1985.
MLA-referens (8:e uppl.)Nopakun, Oonta. Thai Concept of Khit-pen for Adult, and Non-formal Education. Asian and South Pacific Bureau of Adult Education, 1985.
Varning: dessa hänvisningar är inte alltid fullständigt riktiga.