Syamsul Ghufron
https://scholar.google.com/citations?hl=en&user=AssqENsAAAAJ
Universias Nahdlayul Ulama Surabaya, Indonesia
Syamsul Ghufron
https://scholar.google.com/citations?hl=en&user=AssqENsAAAAJ
Universias Nahdlayul Ulama Surabaya, Indonesia