SITUMORANG , Manihar; GULTOM , Syamsul; MANSYUR , Abil; GULTOM , Syawal; RESTU; RITONGA , Winsyahputra. Implementation of Learning Innovations to Improve Teacher Competence in Professional Certificate Programs for In-Service Teachers. International Journal of Instruction, [S. l.], v. 15, n. 2, p. 675–696, 2022. Disponível em: https://e-iji.net/ats/index.php/pub/article/view/406. Acesso em: 18 jul. 2024.