Kammanee, K. “The Cosmological Conceptualization of Southern Thais: A Literary Exploration into Pra Bhumi Chants”. Journal of Humanities and Social Sciences Prince of Songkla University, vol. 17, no. 2, Dec. 2021, pp. 9-45, https://so03.tci-thaijo.org/index.php/eJHUSO/article/view/257453.