Chaikoolvatana, C., Mornsaeng, I. and Chaibarn, P. (2020) “Effectiveness of Teenage Pregnancy Prevention Program in Phayao Province”., Nursing Research and Innovation Journal, 25(3), pp. 340–353. Available at: https://he02.tci-thaijo.org/index.php/RNJ/article/view/171576 (Accessed: 5 May 2024).