姚乃嘉

「臺灣地區橋梁管理資訊系統」橋梁資料查核計畫 = = Complements and correctness check of bridge data in the Taiwan bridge management system / by: 姚乃嘉 (Language materials, printed)

規劃建置全國車行橋梁統計系統 / by: 姚乃嘉 (Language materials, printed)