Nababan, N. 2020. Understanding the Unlawful Acts (Problems and Challenges) A Book Review ‘Perbuatan Melanggar Hukum’, Prof. Dr. R. Wirjono Prodjodikoro, SH., CV Mandar Maju, Bandung, 108 Pages, ISBN 978-979-538-470-0. Indonesian Journal of Advocacy and Legal Services. 2, 2 (Sep. 2020), 297-301. DOI:https://doi.org/10.15294/ijals.v2i2.34785.