Purbolingga, Y., Ridwan, A. and Putri, D.M. 2025. A Machine Learning-Based Ambiguous Alphabet Recognition for Indonesian Sign Language System (SIBI). CogITo Smart Journal. 11, 1 (Jun. 2025), 1–14. DOI:https://doi.org/10.31154/cogito.v11i1.816.1-14.