Fadilla Monica (Department of Physics, Universitas Andalas, Limau Manis, Padang 25163, Indonesia, Indonesia)
Vira Friska (Department of Physics, Universitas Andalas, Limau Manis, Padang 25163, Indonesia, Indonesia)
Deasy Arisa (Research Center for Geotechnology, National Research and Innovation Agency, Bandung 40135, Indonesia, Indonesia)
Marzuki Marzuki (Department of Physics, Universitas Andalas, Limau Manis, Padang 25163, Indonesia, Indonesia)