Wanzi, Koh Leaving a record for posterity/ Koh Wanzi. - Quezon City: Hardware Zone Phils. Corp., ©2015. - V11 i7, pages 12-13; 30 cm. HWM Philippines. ISSN: 16565649 Subjects--Topical Terms: Technology Dewey Class. No.: DPer 303.405 H22 May-Sept 2015 n. 6-10