Hou, Jun, Nataporn Rattachaiwong, และ Linlin Liu. 2024. “The Cultivation of ‘bi-Musicality’ in the Teaching of Sight-Singing and Ear Training”. Journal of Roi Kaensarn Academi 9 (2):320-31. https://so02.tci-thaijo.org/index.php/JRKSA/article/view/267728.