Balakrishna, S. (1971). Family planning knowledge, attitude and practice: A sample survey in Andhra Pradesh. National Institute of Community Development.
শিকাগো স্টাইল (17 তম সংস্করণ) উদ্ধৃতিBalakrishna, Sitamajie. Family Planning Knowledge, Attitude and Practice: A Sample Survey in Andhra Pradesh. Hyderabad: National Institute of Community Development, 1971.
M.L.A (9 ম সংস্করণ) উদ্ধৃতিBalakrishna, Sitamajie. Family Planning Knowledge, Attitude and Practice: A Sample Survey in Andhra Pradesh. National Institute of Community Development, 1971.
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