Hasshrin, Muhammad Safek, and Wan Afnizan Wan Mohamed @ Wan Abd Ghani. 2024. “Development of Nitrate-Nitrogen Calibration Curve Using Laboratory Resistivity Method at Neutral PH Condition”. Recent Trends in Civil Engineering and Built Environment 4 (3): 163-74. https://publisher.uthm.edu.my/periodicals/index.php/rtcebe/article/view/5740.