# A Hierarchical Model to Evaluate the Quality of Web-Based E-Learning Systems

> Research article (Sustainability, 2020) · cited 66× · AI/ML

**Wikidata**: [openalex:W3025840589](https://www.wikidata.org/wiki/openalex:W3025840589)  
**Source**: https://4ort.xyz/entity/a-hierarchical-model-to-evaluate-the-quality-of-web-based-e-learning-systems