鄭永昌

即時線上教學暨遠端監視系統研製 = Real-time online teachingand by: 劉偉淳; 吳岳晃; 林保親; 洪弘恩; 賴世偉; 郭建翔; 鄭永昌 (Language materials, printed) , [著]

化學(下) by: 林經綸; 鄭永昌; 陳昭雄; 黃朝陽 (Language materials, printed) , [主編]