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.