Rahmad Syukur Siregar
https://www.scopus.com/authid/detail.uri?authorId=57202592094
Universitas Muhammadiyah Sumatera Utara, Indonesia
This work is licensed under a Creative Commons Attribution-ShareAlike 4.0 International License.
ISSN: 2830-4497
Published by Unit Penilitian & Pengabdian Masyarakat, part of the Politeknik ATI Padang.
