Llerena WFT, Santamaría-Freire E, Guevara MDG. Informal Trade as a Predominant Factor in the Local Economy of Ambato, Ecuador. JABE [Internet]. 2019 Sep. 25 [cited 2025 Apr. 25];21(5). Available from: https://mail.articlegateway.com/index.php/JABE/article/view/2268