Concepcion, La Delle L. Field study 1: the learner's development and environment / La Delle L. Concepcion, Julieta M. Lagasca, Dalisay V. Rigor. - Plaridel, Bulacan : TCS Publishing House, c2007. - viii, 78 pages : illustration ; 27 cm. Bibliography: p.79. ISBN: 9789710472314 Subjects--Topical Terms: Fieldwork (Educational method)Learning.Teaching.