Larasati, A., Maren, R. ., & Wulandari, R. . (2021). Utilizing Elbow Method for Text Clustering Optimization in Analyzing Social Media Marketing Content of Indonesian e-Commerce. Jurnal Teknik Industri: Jurnal Keilmuan Dan Aplikasi Teknik Industri, 23(2), 111-120. https://doi.org/10.9744/jti.23.2.111-120