Development of a Low-Cost Smartphone-Integrated Portable Imaging Device for the Determination of Nitrate and Phosphate in Soil and Water http://127.0.0.1/xmlui/handle/123456789/15779 2026-04-28T07:57:45Z 2026-04-28T07:57:45Z Development of a Low-Cost Smartphone-Integrated Portable Imaging Device for the Determination of Nitrate and Phosphate in Soil and Water V, Lavanya http://127.0.0.1/xmlui/handle/123456789/15780 2025-03-03T06:39:44Z 2024-12-01T00:00:00Z Development of a Low-Cost Smartphone-Integrated Portable Imaging Device for the Determination of Nitrate and Phosphate in Soil and Water V, Lavanya 2024-12-01T00:00:00Z