“…In recent years, various effective methods have been developed to find the exact solutions of NPDEs, such as tanh-function method [4,5,6,7,8,9,10,11], generalized hyperbolic function method [12], homogeneous balance method [13,14], Jacobi-elliptic function method [15,16,17], exp-function method [18,19], auxiliary equation method [20,21,22,23,24] and so on, e.g. see [25,26,27]. …”