Leckcivilize, A., and R. Bhula-or. “In Memoriam: Professor Ammar Siamwalla (1939–2025)”. SOUTHEAST ASIAN JOURNAL OF ECONOMICS, vol. 13, no. 3, Nov. 2025, pp. 1-6, https://so05.tci-thaijo.org/index.php/saje/article/view/285356.