Ramyashree, J., R. Roja, M., Sivagurunathan, G., & Kotteeswaran, R. (2018). Firefly algorithm based multivariable PID controller design for MIMO process.
International Journal of Engineering and Technology,
7(2.31), 41-44.
https://doi.org/10.14419/ijet.v7i2.31.13394