Charnvivit, P., Thubthong, N. and Luksaneeyanawin, S. 2016. Cluster Analysis of Prominent Features for Determining Stress Levels in Thai Speech. ECTI Transactions on Computer and Information Technology (ECTI-CIT). 2, 2 (Mar. 2016), 109–115. DOI:https://doi.org/10.37936/ecti-cit.200622.53280.