Loso Judijanto
(1), Som Chai
(2), Ming Pong
(3), Justam Justam
(4), Ardi Azhar Nampira
(5)
(1)
IPOSS Jakarta, Indonesia,
(2)
Thammasat University, Thailand,
(3)
Chiang Mai University, Thailand,
(4)
Universitas Mega Buana Palopo, Indonesia,
(5)
Institute Teknologi Sepuluh November, Indonesia