Penullar, Neil Oliver T., The padayon series: humss fusion learning guide / Neil Oliver T, Penullar, Ma. Lourdes F. Melegrito, Diana J. Mendoza. - Quezon City : The Phoenix Publishing House, Inc., 2018. - vi, 108 pages: tables ; 29 cm. English ISBN: 9789710639823 Subjects--Topical Terms: Work immersion.Research. Dewey Class. No.: 371 / P419