Ardi, Ryan Dwi Wahyu, 1Geological Engineering Study Program, Faculty of Earth Science and Technology, Institut Teknologi Bandung, Jl. Ganesha No. 10 Bandung 40132; 2Agrotechnology Study Program, Faculty of Science and Technology, Universitas Nahdlatul Ulama Purwokerto, Jl. Sultan Agung No. 42 Purwokerto 53144, Indonesia