“Clove Powder and Oil Effects on Polyurethane Foam Density, Crystallinity, and Antimicrobial Activity”. Sainmatika: Jurnal Ilmiah Matematika Dan Ilmu Pengetahuan Alam, vol. 23, no. 1, May 2026, pp. 13-21, https://doi.org/10.31851/sainmatika.v23i1.21599.