Bazán Valque, Rosa Ysabel, Pepe Oswaldo Mori Ramírez, Adolfo Cacho Revilla, and Benjamín Roldan Polo Escobar. 2022. “Strategic Plan to Improve the Quality of Customer Service in the University Adult Training Program, Chachapoyas, Perú”. Centro Sur 4 (3). https://centrosureditorial.com/index.php/revista/article/view/233.