Thai, T. Y., Huy, H. N., Tuyet, D. V., Ablameyko, S. V., Hung, N. V., & Hoa, D. V. (2019). Tonal languages speech synthesis using an indirect pitch markers and the quantitative target approximation methods. Journal of the Belarusian State University. Mathematics and Informatics, 3, 105-121. https://doi.org/10.33581/2520-6508-2019-3-105-121