Promrak S. A Study of Ranard Ek Variations in Sathukarn song: A case study of the method of Teacher Suchao Harimpanich and the method of Arjarn Mitt Sapphut. MUSPAJ [internet]. 2024 Aug. 30 [cited 2025 Dec. 10];6(2):27-54. available from: https://so03.tci-thaijo.org/index.php/JournalofMUSPAKKU/article/view/270091