Bogdan-Vasile Cioruța, Alexandru Leonard Pop, Mirela Coman
DOI:
10.9734/ajess/2021/v18i430448
Page: 19-31
Md Aftab Alam
DOI:
10.9734/ajess/2021/v18i430447
Page: 11-18
Tarek Ali Ahmed Abdallah, Mohammed Salah El-Din Abdel Aziz
DOI:
10.9734/ajess/2021/v18i430449
Page: 32-41
V. Pragadeesh Raja, M. Shivasakthy, . Lavakumar
DOI:
10.9734/ajess/2021/v18i430450
Page: 42-46
Chunge Shi, Zezhong Yang
DOI:
10.9734/ajess/2021/v18i430446
Page: 1-10