Razak, J., M. Mohamad, P. Puspitasari, M. Flaifel, and N. Mohamad. “COMPRESSION STRENGTH, HEAT DEGRADATION AND UL-94 FLAMMABILITY PROPERTIES OF POLYURETHANE FILLED BENTONITE COMPOSITE FOAMS”. Journal of Advanced Manufacturing Technology (JAMT), Vol. 14, no. 2(2), Dec. 2020, https://jamt.utem.edu.my/jamt/article/view/6040.