Content Type OA ? PCA ? Books (Back List, Front List) No Yes Request a holdings comparison Portico provides a free holdings comparison service to compare a library’s journal or book holdings to the Portico archive. Search titles and ISSNs by keyword: Show: E-Books All0-9ABCDEFGHIJKLMNOPQRSTUVWXYZ Titles start with N (1) Information Nuevos modelos de negocios Author/Editor: Johemir Pérez Pertuz ,Melva Inés Gómez-Caicedo ,Mildred Karola Lopez Lopez ,Emma Verónica Ramos Farroñán