F. Shareef, Waleed, and Nasheed F. Mossa. 2019. “PCA Classification of Vibration Signals in WSN Based Oil Pipeline Monitoring System”. Journal of Al-Qadisiyah for Computer Science and Mathematics 11 (1):Comp Page 60 - 71. https://doi.org/10.29304/jqcm.2019.11.1.469.