Jualina Widyawaty, Jenas Pardomuan Sihotang, Jepni Piola Togatorop, Iwan Julius Gulo, Jhon Ferinando Tarigan. The Effect Of Problem-Solving Learning Methods On The Accuracy Of Underhand Passes In Girls’ Volleyball At SMP N 2 Hamparan Perak Deli Serdang. JPHR [Internet]. 2025 Dec. 31 [cited 2026 Oct. 27];6(2):423-3. Available from: https://jurnal.stokbinaguna.ac.id/index.php/JPHR/article/view/4772