Ritonga, I. I. C., T. Tamrin, and M. Marpongahtun. “Degradation of Natural Rubber As Asphalt Mixes Modifier Using UV-Ozone Light”. Jurnal Akademika Kimia, vol. 12, no. 2, May 2023, pp. 78-85, doi:10.22487/j24775185.2023.v12.i2.pp78-85.