RomyE.; GoslimK.; WENNY; IVANA; HualangiC. Improving the Role of Students in Teaching Campus Leraning 4 Introduction of Numbers in Mandarin Language in Students of SMP Gadjah Madan Medan. GANDRUNG: Jurnal Pengabdian Kepada Masyarakat, v. 4, n. 2, p. 1026-1031, 1 Jul. 2023.