“…It should be noted that mixed method is the combination of both qualitative and quantitative approaches. [26], [33], [49], [38], [39], [4] Qualitative 27 [40], [34], [22], [57], [36], [37], [27], [28], [30], [32], [21], [24], [42], [43], [44], [45], [46], [58], [15], [41], [17], [18], [20], [56], [29], [5], [11] Quantitative 11 [47], [48], [50], [51], [25], [19], [52], [53], [16], [54], [55] Review 9 [13], [59], [60], [61], [62], [63], …”