Pradabsook, B., K. Chunkao, and S. Bualert. “Interposition of Alien Structure in Aesthetic Value of Ayuthaya Historical and Archaeological Ruin”. Applied Environmental Research, vol. 34, no. 2, June 2013, pp. 71-88, https://ph01.tci-thaijo.org/index.php/aer/article/view/9747.