[1]
Sutarman Borean, M. H. Sinambela, Marlince Anggelina Siep, Risnauli Y. Nainggolan, and Tresya Palungan, “The effectiveness of the ’matahari’ method in improving basic arithmetic skills of junior high school students ”, J. Honai Math, vol. 8, no. 1, pp. 129–142, Apr. 2025.