Ratwai, T., and J. Keawchai. “Fruit Morphological Characters of Durian in Ra-Ngae District Narathiwat Province”. Princess of Naradhiwas University Journal, vol. 11, no. 3, July 2019, pp. 233-40, https://li01.tci-thaijo.org/index.php/pnujr/article/view/198361.