Layugan, May Joy B. Functionality of modular instruction as teaching modality in the new education set-up / May Joy B. Layugan. - Polytechnic College of La Union : [s.n.], 2020. - xi, 128 pages : illustrations ; 28 centimeter. Bibliography: pages 109-111. Subjects--Topical Terms: Teaching --Aids and devices. Dewey Class. No.: TH 371.33 L45f 2020