Pienkhuntod, Ajirapa. 2021. “Entrepreneurship for Sustainability of Islamic Education: A Case of the Non-Formal Islamic School, Pondok Pesantren Al Qohar, Indonesia”. รัฐศาสตร์นิเทศ 7 (2):1-36. https://so05.tci-thaijo.org/index.php/RatthasatNithet/article/view/249093.