jumnongkum, Intira, and Suparp Chatraphorn. “Factors Influencing Students’ Attitude Toward Having Opposite Sex Friends”. Kasetsart Journal of Social Sciences 32, no. 3 (December 31, 2011): 393–404. accessed September 10, 2026. https://so04.tci-thaijo.org/index.php/kjss/article/view/246751.