Phamornsuwan, Wilawan, Namthip Sriwongchay, Ornchulee Wichianpradist, Kreangkrai Kirdsiri, Tippawan Tangpoonsupsiri, Supot Chitsutthiyan, Kittikhun Janyaem, and Isarachai Buranaut. “The Old Town Boundary Identification of Chachoengsao and its Elements”. NAJUA: Architecture, Design and Built Environment 35, no. 2 (June 28, 2021): C23-C41. accessed September 24, 2026. https://so04.tci-thaijo.org/index.php/NAJUA-Arch/article/view/252543.