Marzuki Silalahi, Dena Nadya Rahayu, Bambang Sugeng, Ferhat Aziz, and Sulistioso Giat Sukaryo, “SINTESIS PADUAN Co-Cr MENGGUNAKAN METODE ULTRASONIK”, j. sains materi indonesia, vol. 19, no. 3, pp. 131–136, Apr. 2018.