M. R. Mohd Johari, K. Shaffeei, and H. A. Mustofa, “Innovation of IKIT Basic Mathematics Operations (I-Koam) in PDPC Basic Mathematics Operations of Special Education (Learning Problems) Year Six at SK Tun Abdul Razak”, ANP-JSSH, vol. 5, no. 1, pp. 36-45, Jun. 2024.