Parapak, Intan, 		Ratnayani, Oka, 		Manurung, Manuntun, AND 		Sibarani, James.
" GRAFTING COPOLYMERIZATION OF OZONATED POLYPROPYLENE WITH POLY(ACRYLIC ACID) : AS CATIONIC EXCHANGER" <em>CAKRA KIMIA (Indonesian E-Journal of Applied Chemistry)</em> [Online], Volume 12 Number 2 (31 October 2024)