Shanshan Xu
(1), Xie Guilin
(2), Deng Jiao
(3), Zuliana Zuliana
(4)
(1)
Texila American University, Guyana,
(2)
University of Science and Technology of Hanoi, Viet Nam,
(3)
Universiti Sains Malaysia, Malaysia,
(4)
Universitas Muhammadiyah Sumatera Utara, Indonesia
