00411nam a22001217a 4500003000800000005001700008008004100025040002100066082001600087100002300103245011500126260004800241BD-DhUL20150117142638.0150117b        xxu||||| |||| 00| 0 eng d  aBD-DhULcBD-DhUL  a627.52bRUC1 aKhan, Nazrul Islam  aA comparative  study of RPCP and RDA made irrigation channel /cMd. Nazrul Islam Khan and Mahmud  Hossain Khan  aBogra :bRural Development academy,c24 cm.