Cayambe Badillo XE, Carrera Toro LA, Bravo Espinoza WL, Gualotuña Pachacama WG. Efficiency Analysis in Companies of the economic sub-sector "Wholesale of pharmaceutical products, including veterinary products", applying the DEA method year 2020. CONECTIVIDAD [Internet]. 2023 May 23 [cited 2026 Nov. 7];4(1):80-94. Available from: http://200.63.107.229/ojs/index.php/ISTER/article/view/51