N. A. Kamrozzaman, J. Badusah, and W. M. R. Wan Mohammad, “Heutagogy Approach : Effectiveness of M-Learning For Lifelong Learning Education/ Pendekatan Heutagogi :Keberkesanan M-Pembelajaran untuk Pendidikan Sepanjang Hayat”, SH, vol. 11, no. 3, Aug. 2019.