Porte, Virgilio Simplified OJT Methods (on-Job-Training) on Building Construction / Virgilio Porte - Quezon City, Philippines: Lorimar Publishing, c2021. - viii,203pages : color illustrations ; 27cm. ISBN: 978-621-451-020-7 Subjects--Topical Terms: 1. Building and Construction Dewey Class. No.: Fil. 690.023 P843s 2021