[1] Univ Muhammadiyah Purwokerto, Fac Pharm, Purwokerto, Central Of Java, Indonesia
[2] Univ Muhammadiyah Purwokerto, Ctr Hlth Econ Studies, Purwokerto, Central of Java, Indonesia
[3] World Hlth Org, Dept Immunizat Vaccines & Biol, Bern, Switzerland
[4] Univ Muhammadiyah Purwokerto, Fac Pharm, Dukuh Waluh St,POB 202, Purwokerto 53182, Central of Java, Indonesia