Zaqaibeh, Belal and Sulaiman, Md. Nasir and Mamat, Ali and Ibrahim, Hamidah (2004) An efficient OODB model for ensuring the integrity of user-defined constraints. In: Integrity and Internal Control in Information Systems VI. IFIP International Federation for Information Processing, Part 1 (140). Springer Berlin Heidelberg, pp. 195-208. ISBN 978-1-4020-7900-9

Zaqaibeh, Belal and Ibrahim, Hamidah and Sulaiman, Md. Nasir and Mamat, Ali (2003) Restructuring object-oriented database model to ease checking the integrity constraints. In: Proceedings. Student Conference Research and Development, 2003. SCORED 2003. IEEE Xplore, 171 -176. ISBN 0-7803-8173-4

Zaqaibeh, Belal and Al-Qdah, Majdi and Ibrahim, Hamidah and Taysir, Malik (2003) A special library for supporting Jawi fonts in BGI mode. In: Proceedings. Student Conference Research and Development, 2003. SCORED 2003. IEEE Xplore, pp. 141-145. ISBN 0-7803-8173-4