Akkhathimakul, Jirawan, and Suppakarn Pongyelar. 2021. “The Monopoly of Chinese Traders: A Case Study of Coconut Traders in Paengpuay and Thanat Sub-District, Damnuen Saduak District, Ratchaburi Province”. Parichart Journal 34 (2):216-32. https://so05.tci-thaijo.org/index.php/parichartjournal/article/view/244244.