Reviewers:

1. Willy Ardian Renandya, PhD. (National Institute of Education, Singapore), 

2. Prof. Gusti Astika (Satya Wacana Christian University, Indonesia), 

3. Rob Waring, PhD. (Nortre Dame Seishin University, Japan)  

4. Dr. Margareth J. Lowry (Christian University of Indonesia, Indonesia)

5. Fiona Prajapati (Global English School, Nepal).

6. Dr. Yong Kim (Artha Wacana Christian University, Indonesia)

7. Nguyen Thi Thuy Loan, Ph.D. (Kalasin University, Thailand)

8. Olga Yashenkova (University of Kylv, Ukraine)

9. Parlindungan Pardede (Universitas Kristen Indonesia, Indonesia)

10. Prof. Hagag Mohamed (South Valley University, Egypt)

11. Prof. Ahmet Acar (Dokuz Eylül Üniversitesi, Turkey)

12. Joshua Mattheews (University of New England, Australia)

13. Sivakumar Sivasubramaniam (University of the Western Cape, Republic of South Africa)

14. Janet Weng (Wenzao Ursuline University of Languages, Taiwan)

15. Rinarose B. Budeng (Don Mariano Marcos Memorial State University, Philippines)