Musiri, S. (2018) “Analytical Quasinormal Modes of a Massless Scalar Field in Anti-de-Sitter Spacetimes with a Schwarzschild Black Hole”, KKU Science Journal, 46(4), pp. 697–708. available at: https://ph01.tci-thaijo.org/index.php/KKUSciJ/article/view/249946 (accessed: 19 September 2026).