Sotelo, F., Molina, A. and Rojas, K. 2018. Application of the Snowball Sample in the diagnostic based on factors that affect the productivity of Cherimoya production in MSEs: A case of study of Callahuanca and San Mateo de Otao, Peru. Advances in Social Sciences Research Journal. 5, 8 (Aug. 2018). DOI:https://doi.org/10.14738/assrj.58.4948.