Silmiyati, N. 2018. Meningkatkan Kemampuan Manajemen Waktu Melalui Layanan Penguasaan Konten. Indonesian Journal of Guidance and Counseling: Theory and Application. 7, 3 (Oct. 2018), 62-68. DOI:https://doi.org/10.15294/ijgc.v7i3.26728.