1. Department of Chemistry Faculty of Mathematics and Natural Sciences Laboratorium Sentral Universitas Padjadjaran Jalan Raya Bandung-Sumedang Km 21 Jatinangor 45363 West Java Indonesia
2. Department of Chemistry Faculty of Mathematics and Natural Sciences Universitas Padjadjaran Jalan Raya Bandung-Sumedang Km 21 Jatinangor 45363 West Java Indonesia
3. Pharmaceutical Research and Development Laboratory of Farmaka Tropis Pharmacy Faculty Universitas Mulawarman Jalan Penajam No.1 Samarinda 75119 East Kalimantan Indonesia