Supa, Khotchawan, Lingling Salang, Yuthapong Werawatakul, Kovit Khampitak, and Keerati Wattanakamolchai. 2014. “KAP Study on Contraception of the 1st Year Male Students in Khon Kaen University”. Srinagarind Medical Journal 29 (4):81. https://li01.tci-thaijo.org/index.php/SRIMEDJ/article/view/23649.