Putrinugroho, Ivana Aikozora, Mochammad Anshori, and Wahyu Teja Kusuma. 2025. “Linkage Comparison in Agglomerative Hierarchical Clustering for Clustering Students’ Knowledge of First Aid for Stroke Emergencies”. RIGGS: Journal of Artificial Intelligence and Digital Business 4 (2):937-44. https://doi.org/10.31004/riggs.v4i2.564.