Ortega, Jose Perez. Development of a hydraulic brake system expander : an instructional tool / Jose Perez Ortega. - Manila : Technological University of the Philippines, 2023. - 90 pages : ill. ; 29 cm. + 1 CDROM (4 3/4 in) Master's thesis. College of Industrial Education. -- Includes bibliography. Subjects--Topical Terms: Instructional system--DesignEducational technology--Planning LC Class. No.: THE LB 1028.38 / O78 2023