ตันจันทร์พงศ์ ภ. Variations in Beethoven’s Piano Repertoire: Performance and Analytical Notes. RMJ [internet]. 2018 Jun. 1 [cited 2026 Sep. 10];12(2):103-10. available from: https://so06.tci-thaijo.org/index.php/rmj/article/view/126438