Efforts to Introduce North Sumatera Culture Through PMM3 in The Nusantara Module Course at HKBP Nommensen University Medan. Efektor [Internet]. 2024 Jun. 6 [cited 2025 Jun. 7];11(1):111-8. Available from: https://ojs.unpkediri.ac.id/index.php/efektor-e/article/view/22539