Nilprakobkool, P. T., & Koomkrong, V. (2022). A Study of The Enlightenment of Vakkali Bhikkhu in Vakkali Sutta. Journal of Multidisciplinary in Humanities and Social Sciences, 5(2), 566–574. retrieved from https://so04.tci-thaijo.org/index.php/jmhs1_s/article/view/256929