K. Sipiyaruk, S. Koohawayrojanapakorn, S. Mitriratanakul, T. Arayapisit, and R. L. Srisatjaluk, “Relationship of students’ performance in physics and related subjects in dental curriculum, Mahidol University”, M Dent J, vol. 38, no. 3, pp. 185–191, Oct. 2018.