Tindukasiri, S., and W. Trakulhun. “Sound Continuity Comparison Study of Nine Tremolo Methods in Francisco Tarrega’s Recuerdos De La Alhambra”. Rangsit Music Journal, vol. 13, no. 1, May 2018, pp. 75-90, https://so06.tci-thaijo.org/index.php/rmj/article/view/126391.