1. Physical Chemistry Laboratory, Chemistry Department, Mulawarman University, Samarinda, East Kalimantan 75123, Indonesia
2. Indonesia Defense University, Bogor, West Java 16810, Indonesia
3. School of Chemistry, Monash University, Clayton, Victoria 3800, Australia
4. Biology Department, Mulawarman University, Samarinda, East Kalimantan 75123, Indonesia