Balthip, Karnsunaphat, Usanee Petchruschatachart, and Siriwan Piriyakoontorn. “Purpose in Life Among Thai Junior High School Adolescents”. Songklanagarind Journal of Nursing 37, no. Supplement (December 23, 2017): 89–97. Accessed October 5, 2022. https://he02.tci-thaijo.org/index.php/nur-psu/article/view/106593.