Implementation of the Ziegler-Nichols Proportional Integral Derivative (PID) Method on Coffee Bean Roasting Machine Controls. EJIITEK [Internet]. 2023 Jul. 20 [cited 2026 May 26];13(1):16-27. Available from: https://e-journal.upm.ac.id/index.php/energy/article/view/energy.v13i1.p16-27