Apriyani, Tri Dewi, Noor Fadiawati, and M. Mahfudz Fauzi Syamsuri. 2019. “The Effectiveness of Problem-Based Learning on the Hoax Informations to Improve Students’ Critical Thinking Skills (Related to Some Foods and Beverages)”. IJCER (International Journal of Chemistry Education Research) 3 (1):15-22. https://doi.org/10.20885/ijcer.vol3.iss1.art3.