Ghassani Salwa Zata Amani Putri, Danang Satrio, and Ari Muhardono. “Peran Presence, E-Learning, Performance Appraisal Dalam Portal Terhadap Kualitas Kerja Karyawan PT. Telkom Akses”. Conference on Economic and Business Innovation (CEBI), vol. 1, no. 1, Mar. 2021, pp. 801-15, https://jurnal.widyagama.ac.id/index.php/cebi/article/view/154.