Upavaddhano (Koykeaw), P. E., Raksachorm, K., & Netnimit, S. (2023). An An analytical study of the dhamma attainments of the noble persons according to threefold training. Mahachula Academic Journal, 10(1), 348–362. retrieved from https://so04.tci-thaijo.org/index.php/JMA/article/view/259014