Senia Almayah,Yayan Sudrajat, Y. P. P. W. N. M. D. B. “THE IMPLEMENTATION OF CIPP EVALUATION MODEL ON A MEMORY-ENHANCED ENGLISH LEARNING PROGRAM”. International Journal of Advanced Science and Technology, Vol. 29, no. 4s, Mar. 2020, pp. 1684 -93, http://sersc.org/journals/index.php/IJAST/article/view/6973.