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https://elibrary.tucl.edu.np/handle/123456789/14090
https://elibrary.tucl.edu.np/handle/123456789/14109
https://elibrary.tucl.edu.np/handle/123456789/14118
https://elibrary.tucl.edu.np/handle/123456789/14128
https://elibrary.tucl.edu.np/handle/123456789/14131
https://elibrary.tucl.edu.np/handle/123456789/14133
https://elibrary.tucl.edu.np/handle/123456789/14132
https://elibrary.tucl.edu.np/handle/123456789/14135
https://elibrary.tucl.edu.np/handle/123456789/14143
https://elibrary.tucl.edu.np/handle/123456789/14149
https://elibrary.tucl.edu.np/handle/123456789/14148