Wong, C. L., Farquhar, C., Roberts, H., & Proctor, M. (2009). Oral contraceptive pill for primary dysmenorrhoea. Cochrane Database Syst Rev.
Chicago Stili AlıntıWong, Chooi L., Cindy Farquhar, Helen Roberts, ve Michelle Proctor. "Oral Contraceptive Pill for Primary Dysmenorrhoea." Cochrane Database Syst Rev 2009.
MLA AlıntıWong, Chooi L., Cindy Farquhar, Helen Roberts, ve Michelle Proctor. "Oral Contraceptive Pill for Primary Dysmenorrhoea." Cochrane Database Syst Rev 2009.
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