Stoicea, Paula, Adrian Dinu Toma, and Elena Stoian. “METHODS OF ESTIMATING COSTS EFFICIENCY IN THE AGRICULTURAL COMMERCIAL COMPANIES IN ROMANIA”. Economic of Agriculture 58, no. 1 Book 2 (December 31, 2011): 338–343. Accessed December 5, 2025. https://www.ea.bg.ac.rs/index.php/EA/article/view/787.