Hadi Susanto, Natanael Karjanto, Zulkarnain, Toto Nusantara, Taufiq Widjanarko
[No abstract available]
Department of Mathematical Sciences, University of Essex, Colchester, CO4 3SQ, United Kingdom; Department of Mathematics, University College, Sungkyunkwan University, Natural Science Campus, 2066 Seobu-ro, Jangan-gu, Suwon, Gyeonggi-do, 16419, South Korea; Department of Mathematics, Faculty of Mathematics and Natural Sciences, Universitas Riau, Kampus Bina Widya KM 12.5, Simpang Baru, Tampan, Kota Pekanbaru, Riau, 28293, Indonesia; Department of Mathematics, Faculty of Mathematics and Natural Sciences, Malang State University, Jalan Semarang 5, Malang, 65145, Indonesia; Manufacturing Metrology Team, Faculty of Engineering, The University of Nottingham, Adv. Manufacturing Building, Jubilee Campus, Wollaton Road, Nottingham, NG8 1BB, United Kingdom
