H. Doharni, H. Hasratuddin, R. Husein, and S. Syahril, “The Influence of the Picture and Picture Model Assisted by Video Media on the Problem Solving Ability and Mathematics Learning Motivation of Students at SDN 100312 Pargarutan Jae South Tapanuli”, CE, vol. 6, no. 1, pp. 29-42, Apr. 2025.