Farhansyah, D., Andryana, S., & Winarsih, W. (2020). Design And Implementation Of It Helpdesk Application Using Knowlegde Management System Approach: Design And Implementation Of It Helpdesk Application Using Knowlegde Management System Approach. Jurnal Mantik, 4(2), 1107-1113. https://doi.org/10.35335/mantik.Vol4.2020.839.pp1107-113