S. Mulyani and D. Hamdani, “TEKNIK PENCAMPURAN YANG OPTIMAL ANTARA CRUMB RUBBER DAN ASPAL PEN 60/70 (OPTIMAL MIXING TECHNIQUE OF CRUMB RUBBER AND 60/70 PEN ASPHALT)”, Jatan, vol. 34, no. 1, pp. 8–19, Mar. 2018.