W. Yunita, M. Zaim, H. Syarif, and Y. Zainil, “The Effectiveness of Project-Based Learning through Vlog to Improve Pre-Schoolers’ Vocabulary Mastery”, J. Obs. J. Pendidik. Anak Usia Dini, vol. 6, no. 5, pp. 4661–4668, Jun. 2022.