Xuất tinh ngoài âm đạo (Vietnamese Wikipedia)

Analysis of information sources in references of the Wikipedia article "Xuất tinh ngoài âm đạo" in Vietnamese language version.

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archive.org

Bullough, Vern L. (2001). Encyclopedia of birth control. Santa Barbara, Calif: ABC-CLIO. tr. 74–75. ISBN 978-1-57607-181-6. Truy cập ngày 24 tháng 7 năm 2009.

Rogow D, Horowitz S (1995). “Withdrawal: a review of the literature and an agenda for research”. Studies in family planning. 26 (3): 140–53. doi:10.2307/2137833. PMID 7570764., which cites:

Population Action International (1991). "A Guide to Methods of Birth Control." Briefing Paper No. 25, Washington, D. C.

Rogow D, Horowitz S (1995). “Withdrawal: a review of the literature and an agenda for research”. Studies in family planning. 26 (3): 140–53. doi:10.2307/2137833. PMID 7570764., which cites:

Population Action International (1991). "A Guide to Methods of Birth Control." Briefing Paper No. 25, Washington, D. C.

Rogow D, Horowitz S (1995). “Withdrawal: a review of the literature and an agenda for research”. Studies in family planning. 26 (3): 140–53. doi:10.2307/2137833. PMID 7570764., which cites:

Population Action International (1991). "A Guide to Methods of Birth Control." Briefing Paper No. 25, Washington, D. C.

Adams, Cecil (ngày 7 tháng 1 năm 2002). “Who wrote the Bible? (Part 1)”. The Straight Dope. Creative Loafing Media, Inc. Truy cập ngày 24 tháng 7 năm 2009.