Hisan, Aisyah, Ella Kusumastuti, and Widhi Mahatmanti. 2017. “Pemanfaatan Serat Daun Nanas Dalam Sintesis Geopolimer Berbasis Abu Layang Batubara”. Indonesian Journal of Chemical Science 6 (2), 97-103. https://doi.org/10.15294/ijcs.v6i2.12272.