Phutathum โสธิดา, Komsan Kiatrungrit, Hongsanguansri ศิริไชย, and กลกิจโกวินท์ วรุณา. 2021. “Association Between Grit and Medical Professionalism Among Medical Students and Related Factors”. Journal of the Psychiatric Association of Thailand 66 (1):81-96. https://he01.tci-thaijo.org/index.php/JPAT/article/view/245368.