Popoola, A. I. , Ponle, A. L., Ogunsua, B. O., Oluyamo, S. S. “Design and Implementation of an Instrument for Methane (CH4) and Nitrous Oxide (N2O) Measurements”. NIPES - Journal of Science and Technology Research, vol. 1, no. 3, Aug. 2019, https://journals.nipes.org/index.php/njstr/article/view/70.