Ratanayano (Tuntichula), P., P. phatthanabundit, P. bodhikun, and S. Thongpan. “A Model of the Four Foundation of Mindfulness Instruction for Adolescenes”. Dhammathas Academic Journal, vol. 17, no. 3, Feb. 2018, pp. 117-28, https://so06.tci-thaijo.org/index.php/dhammathas/article/view/78860.