Pepple, Mc-Kelly Tamunotena, and Efiyeseimokumo Sample Ikeremo. “EFFICIENCY OF STATE-DEPENDENT PROPORTIONAL INTEGRAL PLUS OVER PROPORTIONAL INTEGRAL PLUS IN THE CONTROL AIR CONDITIONER WITH FREE COOLING”. Irish International Journal of Engineering and Scientific Studies, vol. 5, no. 4, July 2022, https://aspjournals.org/Journals/index.php/iijess/article/view/86.