Rajikal, W. and Hamzah, M.I. (2020) “Kajian Sistematik Pengajaran Abad Ke-21 (PAK21) dalam Kalangan Guru Pendidikan Islam (GPI): Systematic Review of 21st Century Teaching Among Islamic Education Teachers”, ATTARBAWIY: Malaysian Online Journal of Education, 4(2), pp. 103–113. doi:10.53840/attarbawiy.v4i2.46.