Espinoza Hernández, D.L. 2015. Developing an addin for Monodevelop 2.8 that enables the implementation of subscription service using ASP .NET 2.0 and PostgreSQL 8.4 database manager. Universitas (León) . 5, 2 (Aug. 2015), 9–16. DOI:https://doi.org/10.5377/universitas.v5i2.2030.