A collaborative project with Firda Ayu Setiawati that has been used in her thesis research: "Feature Selection Menggunakan Clustering pada Kategorisasi Terjemah Hadits", which analyzes the effect of feature selection using k-medoids clustering on Hadith categorization. This project was adapted into a journal: "Feature Selection using k-Medoid Algorithm for Categorization of Hadith Translation in English" and presented on International Conference on Telematics and Wireless (ICWT) in Jogjakarta, Indonesia on July 12-13, 2019.