Johan และผู้แต่งคนอื่นๆ. 1990. Unmet need for contraception in Indonesia : a secondary data analysis of the 1987 national Indonesia contraceptive prevalence survey. Faculty of Graduate Studies, Mahidol University;
Johan และผู้แต่งคนอื่นๆ. (1990) Unmet need for contraception in Indonesia : a secondary data analysis of the 1987 national Indonesia contraceptive prevalence survey . Mahidol University/Bangkok.
Johan และผู้แต่งคนอื่นๆ. Unmet need for contraception in Indonesia : a secondary data analysis of the 1987 national Indonesia contraceptive prevalence survey. . Bangkok:Mahidol University, 1990.
Johan และผู้แต่งคนอื่นๆ. (1990) Unmet need for contraception in Indonesia : a secondary data analysis of the 1987 national Indonesia contraceptive prevalence survey . Mahidol University/Bangkok.