“…)-expansion method [4], Clarkson-Kruskal (CK) direct method [5], improved tan ( )/2-expansion method [6], Sumudu transform method [7], new expansion method [8], extended sinh-Gordon equation expansion method [9], the modified Kudryashov method [10], (1/ ′)-expansion method [11][12][13][14][15], collocation method [16,17], first integral method [18], F-expansion method [19], the modified exponential function method [20], Difference scheme method [21] and so on [22][23][24][25][26][27][28][29].…”