# Development of Learning Materials through PBL with Karo Culture Context to Improve Students’ Problem Solving Ability and Self-Efficacy

> Research article (International Electronic Journal of Mathematics Education, 2019) · cited 65× · AI/ML

**Wikidata**: [openalex:W2913658298](https://www.wikidata.org/wiki/openalex:W2913658298)  
**Source**: https://4ort.xyz/entity/development-of-learning-materials-through-pbl-with-karo-culture-context-to-improve-students-problem-solving-ability-and-