1. Abdul Razif, Z., & Mohd Zaki, A. R. (2017). Arabic language vocabulary size and its relation with speaking skills. Jurnal Sultan Alauddin Sulaiman Shah, 4(1), 220-228.
2. Abdul Razif, Z., Saifulah, S., Khairil Ashraf, E., Mohd Zaki, A. R., Khirulnizam, A. R., Muhammad Haron, H., & Naqibah, M. (2016). Pembelajaran kosa kata Arab berbantukan aplikasi [Application-assisted Arabic vocabulary learning]. IRSYAD2016, Selangor, Malaysia.
3. Abu Riya, M. (2001). The impact of using computerized games in the sixth grade students in acquiring the four arithmetic algorithms. Studies of Educational Sciences, 164-176.
4. Akbar, B. (2020). Mainstream theoretical trends and future directions of L2 motivation studies in classroom and CALL contexts. CALL_EJ, 2(1), 1-28.
5. Alessi, S. M., & Trollip, S. R. (1984). Computer-based instruction: Methods and development (2nd ed.). Prentice-Hall.