1 Subjects: “...economic losses...”

2 Subjects: “...control engineering...”

3 Subjects: “...History of engineering & technology / bicssc...”

4 Subjects: “...engineer...”

5 Subjects: “...traditional rice economics...”

6 Subjects: “...,Regressive engineering,Weaponry,Orestes,Transitional period,Asia,History of religions,Interactions with other...”

7 Subjects: “...economic benefits...”

8 Subjects: “...economic growth...”

9 Subjects: “...economic value...”

10 Subjects: “...engineering and technology...”