Yacelga Rosero C, Solórzano Robinson H. Sustainability in the curriculum of the tourism professional at the Polytechnic State University of Carchi UPEC. Tierra Infinita [Internet]. 2019 Dec. 20 [cited 2025 Dec. 18];5(1):189-200. Available from: https://www.revistasdigitalesupeceduec35.biteca.online/index.php/tierrainfinita/article/view/969