1. Piratheeparajah, N., 2016. Temporal and spatial variations of the atmospheric temperature in the Northern province of Sri Lanka. Int. Res. J. Environ. Sci., 5: 63-67.
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2. Piratheeparajah, N., 2016. Pattern of spatial and temporal variations of rainfall in the Northern province of Sri Lanka 1972-2014. Indian J. Spatial Sci., 7: 1-6.
3. Piratheeparajah, N., 2016. Micro climatic variations in the Northern province of Sri Lanka. Cintanai, 16: 103-114.
4. Piratheeparajah, N., 2015. Climate change and mitigation measures in the Jaffna district of Sri Lanka. Cintanai, 15: 102-117.
5. Nagamuthu, P. and K. Rajendram, 2015. Occurrences of flood hazards in the northern province of Sri Lanka. J. S. Asian Stud., 3: 363-376.
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6. Piratheeparajah, N. and S. Raveendran, 2014. Spatial variations of the flood and drought in the Northern region of Sri Lanka. Int. Res. J. Earth Sci., 2: 1-10.
7. Piratheeparajah, N. and K. Rajendram, 2014. Impacts of flood and drought hazards on the economy of the Northern region of Sri Lanka. J. Econ. Sustain. Dev., 5: 31-44.