⁽¹⁾ Hock Hung Chieng (Universiti Tun Hussein Onn Malaysia, Malaysia)
⁽²⁾ Noorhaniza Wahid (Universiti Tun Hussein Onn Malaysia, Malaysia)
⁽³⁾ Ong Pauline (Universiti Tun Hussein Onn Malaysia, Malaysia)
⁽⁴⁾ Sai Raj Kishore Perla (Institute of Engineering and Management, India)

⁽¹⁾ Suparman Suparman (Universitas Ahmad Dahlan, Indonesia)
⁽²⁾ Mohd Saifullah Rusiman (Universiti Tun Hussein Onn Malaysia, Malaysia)

⁽¹⁾ Ali Muhammad Usman (Universiti Sains Malaysia, Malaysia)
⁽²⁾ Umi Kalsom Yusof (Universiti Sains Malaysia, Malaysia)
⁽³⁾ Syibrah Naim (Federal College of Education (Technical) Gombe, Niger)

⁽¹⁾ Anang Kukuh Adisusilo (Institut Technology of Sepuluh November Surabaya, Indonesia)
⁽²⁾ Mochamad Hariadi (Institut Technology of Sepuluh November Surabaya, Indonesia)
⁽³⁾ Eko Mulyanto Yuniarno (Institut Technology of Sepuluh November Surabaya, Indonesia)
⁽⁴⁾ Bambang Purwantana (Universitas Gadjah Mada, Indonesia)
⁽⁵⁾ Radi Radi (Universitas Gadjah Mada, Indonesia)

⁽¹⁾ Roman Voliansky (Dniprovsky State Technical University, Ukraine)
⁽²⁾ Andri Pranolo (Universitas Ahmad Dahlan, Indonesia)

⁽¹⁾ Husnul kausarian (Universitas Islam Riau, Indonesia)
⁽²⁾ Josaphat Tetuko Sri Sumantyo (Chiba University, Japan)
⁽³⁾ Dewandra bagus eka putra (Universitas Islam Riau, Indonesia)
⁽⁴⁾ Adi Suryadi (Universitas Islam Riau, Indonesia)
⁽⁵⁾ Gevisioner Gevisioner (Research and Development Board, Government of Riau Province, Indonesia)

⁽¹⁾ Irene Muflikh Nadhiroh (Indonesian Institute of Science, Indonesia)
⁽²⁾ Ria Hardiyati (Indonesian Institute of Science, Indonesia)
⁽³⁾ Mia Amelia (Indonesian Institute of Science, Indonesia)
⁽⁴⁾ Tri Handayani (Indonesian Institute of Science, Indonesia)

⁽¹⁾ Ian Mochamad Sofian (University of Sriwijaya, Indonesia)
⁽²⁾ Azhar Kholiq Affandi (University of Sriwijaya, Indonesia)
⁽³⁾ Iskhaq Iskandar (University of Sriwijaya, Indonesia)
⁽⁴⁾ Yosi Apriani (Universitas Muhammadiyah Palembang, Indonesia)