Supa, Khotchawan, Lingling Salang, Yuthapong Werawatakul, Kovit Khampitak, and Keerati Wattanakamolchai. “KAP Study on Contraception of the 1st Year Male Students in Khon Kaen University”. Srinagarind Medical Journal 29, no. 4 (November 15, 2014): 81. Accessed January 27, 2022. https://li01.tci-thaijo.org/index.php/SRIMEDJ/article/view/23649.