1. Department of Chemical Engineering, Graduate School of Chemical Engineering, Unversitas Gadjah Mada, Jalan Grafika No. 2 Kampus UGM Bulaksumur, D.I. Yogyakarta 55281, Indonesia
2. Department of Chemical Engineering, Faculty of Engineering, Unversitas Gadjah Mada, Jalan Grafika No. 2 Kampus UGM Bulaksumur, D.I. Yogyakarta 55281, Indonesia