Iadkert, K., and V. Chantarangkul. “The Relative Degree of Sonority and English Consonant Clusters Produced by Thai Speakers”. Language and Linguistics, vol. 41, no. 2, Nov. 2023, pp. 86-113, https://so04.tci-thaijo.org/index.php/joling/article/view/257445.