Pagarra, Hamzah. “PENGEMBANGAN PERANGKAT PEMBELAJARAN MELALUI LESSON STUDY DENGAN MODEL KOOPERATIF TIPE NUMBERED HEADS TOGETHER BERBANTUAN MEDIA MANIPULATIF DI SEKOLAH DASAR”. Innovative Journal of Curriculum and Educational Technology 3, no. 1 (1). Accessed July 17, 2024. https://journal.unnes.ac.id/sju/ujet/article/view/6875.