Nguyen, T.T., Dinh-Hai Luong, Hong-Lien Nguyen, Thi-Phuong Thao Vu and Hoai-Thu Nguyen 2022. A Bibliometric Analysis of Studies Concerning Policy Issues in Covid-19 Pandemic. International Journal of Social Learning (IJSL). 2, 2 (Apr. 2022), 173–185. DOI:https://doi.org/10.47134/ijsl.v2i2.97.