Jeriko Gormantara
(1), Devi Fitri Ferdania
(2), Fajar Yuliawan
(3), Hanni Garminia
(4)
(1)
Department of Mathematics, Universitas Hasanuddin, Indonesia,
(2)
School of Mathematics, University of Birmingham, United Kingdom,
(3)
Department of Mathematics, Institut Teknologi Bandung, Indonesia,
(4)
Department of Mathematics, Institut Teknologi Bandung, Indonesia