Erraissi, Allae, and Abdessamad Belangour. “Data Sources and Ingestion Big Data Layers: Meta-Modeling of Key Concepts and Features”. International Journal of Engineering & Technology 7, no. 4 (September 5, 2018): 3607–3612. Accessed May 2, 2024. https://www.sciencepubco.com/index.php/ijet/article/view/21742.