Musikpodoke, D., W. Kanjanasurat, S. Oopachitakul, and C. Metta. “Learning Activity Management by Learner Centered Approach Using CIPPA Model in Medical Photography 1”. Srinagarind Medical Journal, vol. 21, no. 4, Nov. 2013, pp. 293-7, https://li01.tci-thaijo.org/index.php/SRIMEDJ/article/view/13683.