Alwendi Alwendi
(1), Erwina Azizah Hasibuan
(2), Andi Saputra Mandopa
(3), Tufan Adiguzel
(4)
(1)
Universitas Graha Nusantara, Indonesia,
(2)
Faculty of Engineering, Graha Nusantara University, Indonesia,
(3)
Mathematics FKIP, Graha Nusantara University, Indonesia,
(4)
Ozyegin University, Turkey