1. Validation and Uncertainty Evaluation of an LC-DAD Method for Simultaneous Quantification of Benzoic Acid, Methylparaben, and N-Butylparaben in Soy Sauce ; Yosi Aristiawan, Dillani Putri Ramadhaningtyas, Dyah Styarini. 2. Black Water Purification by Activated Carbon from Ilalang Weeds (Imperata cylindrica) Adsorbent in Peatland Rural Area ; Ngatijo Ngatijo, Heriyanti Heriyanti, Winda Arin…