Napitupulu, R., C. Manurung, and C. Sembiring. “Laju Keausan Dan Kekerasan Kampas Rem Pada Sistem Pengereman Sepeda Motor”. SPROCKET JOURNAL OF MECHANICAL ENGINEERING, Vol. 4, no. 1, Aug. 2022, pp. 10-19, doi:https://doi.org/10.36655/sprocket.v4i1.748.