Rivera-De Leon, Jovelyn S. Challenges in collection development of e-resources at the Urdaneta City University Library / Jovelyn S. Rivera-De Leon. - Saint Louis College : [s.n.], 2021. - xiv, 107 pages : illustration ; 28 centimeter. References: pages 62-72. Subjects--Topical Terms: Collection development (Libraries). Dewey Class. No.: TH 025.21 D37c 2021