Chalise, R., P. K. Thakur, J. J. Nakarmi, and S. P. Shrestha. 2021. “Preperation of Thin Film of Tin Oxide (SnO2) by Spray Pyrolysis Method and Study Its Application As Gas Sensor”. Journal of Nepal Physical Society 7 (2):144-50. https://doi.org/10.3126/jnphyssoc.v7i2.38635.