Muddavo /Pettra P, Phrakhrupawanpattanabundit. Thai Society Development with a Thorough Knowledge and Understanding of the Three Planes. JGSR [internet]. 2025 Aug. 31 [cited 2026 Sep. 15];10(2):166-79. available from: https://so03.tci-thaijo.org/index.php/saketreview/article/view/286315