00612nam a22001697a 4500 45652 BD-DhUET 260418b xxu||||| |||| 00| 0 eng d 0 BD-DhUET Mahfuzur Rahman Kanon, S. M. Investigation of causes and probable solutions of safe drinking water scarcity in selected primary educational institutions of Khulna district, Bangladesh Dhaka Institute of Water and Flood Management (IWFM), BUET 2025 xvii, 188p. One CD-ROM Includes bibliographies TH 45652 45652 0 0 ddc 0 0 81959 BCL BCL AS 2026-04-18 121016 2026-04-18 1 2026-04-18 TH