Laing, J. E., & Wongboonsin, K. (1992). Findings on contraceptive use in effectiveness from the 1987 Thailand demographic and health survey. East-West Center.
Chicago-referens (17:e uppl.)Laing, John E., och Kua Wongboonsin. Findings on Contraceptive Use in Effectiveness from the 1987 Thailand Demographic and Health Survey. Honolulu: East-West Center, 1992.
MLA-referens (9:e uppl.)Laing, John E., och Kua Wongboonsin. Findings on Contraceptive Use in Effectiveness from the 1987 Thailand Demographic and Health Survey. East-West Center, 1992.
Varning: dessa hänvisningar är inte alltid fullständigt riktiga.