Yusuf Gumel, Ahmad Makmom Bn Abdullah, Rasheeda E. Elhadi, Da’u Abba Umar, Danladi. " Determining Temperature trends in the Granary Areas of Peninsular Malaysia using Mann-Kendall and Sen’s Slope Estimator." Global Journal of Human-Social Science Research [Online], (2020): n. pag. Web. 6 Aug. 2020