Mustaffa, A. H.; Bahrudin, N. Z.; Sahudin, Z.; Abdullah, H.; Abdul Aziz, M. R. What Have We Learned from Firm Efficiency Research for the Past 35 Years? A Bibliometric Analysis. IMBR 2023, 15 (1(I)SI), 216-227. https://doi.org/10.22610/imbr.v15i1(I)SI.3406.