Ghaffarzadeh, Navid, et al. “Improvementvoltage Stability and Load Ability Enhancement by Continuation Power Flow and Bifurcation Theory”. Indonesian Journal of Electrical Engineering and Informatics (IJEEI), vol. 1, no. 4, Dec. 2013, pp. 109-18, https://doi.org/10.52549/ijeei.v1i4.49.