Optimal Control of Lipid Extraction Model on Microalgae Using Linear Quadratic Regulator (LQR) and Pontryagin Maximum Principle (PMP) Methods. MATEMATIKA [Internet]. 2018 Dec. 31 [cited 2026 Jul. 26];34(3):129-40. Available from: https://matematika.utm.my/index.php/matematika/article/view/1145