Sento, A., and Y. Kitjaidure. “A Hybrid CKF-NNPID Controller for MIMO Nonlinear Control System”. ECTI Transactions on Computer and Information Technology (ECTI-CIT), Vol. 10, no. 2, Mar. 2017, pp. 176-84, doi:10.37936/ecti-cit.2016102.64772.