Sukthong, P. and Charoenporn, P. 2026. Performance Evaluation of Imputation Techniques for Telecommunications Customer Clustering. ECTI Transactions on Computer and Information Technology (ECTI-CIT). 20, 1 (Jan. 2026), 174–192. DOI:https://doi.org/10.37936/ecti-cit.2026201.264267.