YamadA, Hiroki, Shigeru Satoh, Shigeo Tanaka, Yukihiro Hirai, Susumu Kawahara, and Keisuke Sugano. “Methodology for Establishing the Appropriate Protected Area Based on the Analysis of Old Drawings In Case of Gia Long Mausoleum, Hue”. Restauro Archeologico 30, no. 1 (February 3, 2023). Accessed November 4, 2024. https://oaj.fupress.net/index.php/ra/article/view/14350.