F. H. Alharan, A., A. S.A. Al-Haboobi, H. T.R. Kurmasha, and A. J.M. Albayati. “Content-Based Image Retrieval Hybrid Approach Using Artificial Bee Colony and K-Means Algorithms”. International Journal of Sciences: Basic and Applied Research (IJSBAR), vol. 27, no. 2, June 2016, pp. 235-58, https://www.gssrr.org/index.php/JournalOfBasicAndApplied/article/view/5811.