Saavedra, Javier E. “Socio-Demographic Factors and Early Life Events Associated With Happiness in Adults of Metropolitan Lima”. Revista Peruana de Medicina Experimental y Salud Pública 37, no. 1 (March 23, 2020): 42–50. Accessed November 21, 2024. https://rpmesp.ins.gob.pe/index.php/rpmesp/article/view/4580.