Reviewer
- Saib Suwilo, (Scopus ID = 6504683544) Universitas Sumatera Utara, Indonesia
- Tracey Muir, (Scopus ID = 24376940600) University of Tasmania, Hobart, Australia
- Burcu Gurbuz, (Scopus ID = 36864011800) Uskudar University, Turkey
- Sutarman Sutarman, (Scopus ID = 55964801300) Univeritas Sumatera Utara, Indonesia
- Tulus Tulus, (Scopus ID = 56736905200) Univeritas Sumatera Utara, Indonesia
- Anton Abdul Basahkamil, (Scopus ID = 24481107300) Istanbul Gelisim University, Turkey
- Dorien J Detombe, (Scopus ID = 6603137867) Sichuan University, Netherlands
- Masaji Watanabe, (Scopus ID = 7405488766) Okayama University, Indonesia