Refbacks
- There are currently no refbacks.
Indexing
Abd Basarul Mukmin
Universitas Muhammadiyah Sumatera Utara
Indonesia
Elfrianto Elfrianto
Universitas Muhammadiyah Sumatera Utara
Indonesia
Faisal Rahman Dongoran
Universitas Muhammadiyah Sumatera Utara
Indonesia