Chatrathaisang, Piravat, and Dr. Sura Piriyasanguanpong. “Ways of Trading on Suvarnabhumi Route”. Journal of Dhamma for Life 29, no. 4 (October 28, 2023): 45–59. accessed May 25, 2025. https://so08.tci-thaijo.org/index.php/dhammalife/article/view/2472.