A spike in the scientific output on social sciences in Vietnam for recent three years: Evidence from bibliometric analysis in Scopus database (2000-2019). - Binh Pham-Duc; Trung Tran; Thao-Phuong-Thi Trinh; Tien-Trung Nguyen; Ngoc-Trang Nguyen; Hien-Thu-Thi Le (J. Inf. Sci., 2022)