[1] Duy Tan Univ, Inst Res & Dev, Danang 550000, Vietnam
[2] Duy Tan Univ, Fac Nat Sci, Danang 550000, Vietnam
[3] Kermanshah Univ Technol, Dept Engn Sci, Kermanshah, Iran
[4] Bahcesehir Univ, Fac Engn & Nat Sci, Dept Math, TR-34349 Istanbul, Turkey
[5] Ton Duc Thang Univ, Inst Computat Sci, Div Computat Math & Engn, Ho Chi Minh City, Vietnam
[6] Ton Duc Thang Univ, Fac Math & Stat, Ho Chi Minh City, Vietnam