A. V. R. Sihombing, R. Utami, A. K. Somantri, A. Febriansya, R. P. Sihombing, and A. M. Mulyadi, “Stone Matrix Asphalt Performance with Glycerin Pitch as Asphalt Binder Extender”, Period. Polytech. Civil Eng., vol. 67, no. 2, pp. 582–595, Jan. 2023.