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https://elibrary.tucl.edu.np/handle/123456789/12006
https://elibrary.tucl.edu.np/handle/123456789/12009
https://elibrary.tucl.edu.np/handle/123456789/12010
https://elibrary.tucl.edu.np/handle/123456789/12015
https://elibrary.tucl.edu.np/handle/123456789/12016
https://elibrary.tucl.edu.np/handle/123456789/12017
https://elibrary.tucl.edu.np/handle/123456789/12019
https://elibrary.tucl.edu.np/handle/123456789/12018
https://elibrary.tucl.edu.np/handle/123456789/12021
https://elibrary.tucl.edu.np/handle/123456789/12020
https://elibrary.tucl.edu.np/handle/123456789/12022