Syafrizal Sy Department of Mathematics and Data Science,
Faculty of Mathematics and Natural Science, Andalas University,
Campus of UNAND Limau Manis Padang-25163, Indonesia
Nada Nadifah Ma’ruf Department of Mathematics and Data Science,
Faculty of Mathematics and Natural Science, Andalas University,
Campus of UNAND Limau Manis Padang-25163, Indonesia