Guido Blixly, R., C. Yunkiath Cobam, and S. Espinoza Blanco. “Perception Regarding Isigni in the Community of Sawa, Waspam, Rio Coco”. University Journal of the Caribbean, Vol. 16, no. 1, July 2016, pp. 21-25, https://revistas.uraccan.edu.ni/index.php/Caribe/article/view/384.