“…In this regard the stability analysis is investigated in [16], [17], [25], [26], [28] and [30], and a variety of control strategies is applied to HIV-1. For instance, feedback control in [7]- [9] and [20], nonlinear theory based control in [14]- [15] and [29], model predictive control in [18], [27], optimal control in [10] [22] [31] [32] and [36] and intelligent control in [59] [63] can be noticed.…”