Khuwutthayakorn, Y. ., Sopa, K. ., Chaiklangmuang , K. ., Wongthana, T. ., Tangsumpanta, P. ., & Ekpatanaparnich, S. . (2020). Efficacy of light curing unit prototype on surface hardness of resin composite as a function of tilt angle. Chiang Mai Dental Journal, 41(3), 65–73. Retrieved from https://he01.tci-thaijo.org/index.php/cmdj/article/view/246393