(1)
Syed Chear, S. L.; Mohd Nor, M. Y. Learning Intervention in E-Learning Portal Through WhatsApp and Telegram Based on Needham Five Phase Model: Intervensi Pembelajaran Di Portal E-Pembelajaran Melalui Aplikasi Whatsapp Dan Telegram Berdasarkan Model Lima Fasa Needham. ESSS 2020, 1 (1), 11-27. https://doi.org/10.37134/esss.vol1.1.2.2020.