Vu-Thuy, H. ., Do-Thi, T. ., Nguyen, N. T. and Ngo-Thi-Kim, H. . (2025) “Pedagogical communication skills of preschool teachers: An analysis of spoken language, behavior and gesture communication, and educational tools in early childhood education”, International Journal of Innovative Research and Scientific Studies, 8(2), pp. 1114–1122. doi: 10.53894/ijirss.v8i2.5411.