“…Order of subjects is according to authors' opinions on the importance of subjects and different from the frequency of appearances on the articles. [10], [11], [12], [13], [14], [7], [15], [16], [17], [18], [19], [20], [21] Cultural [22], [23], [2], [24], [10], [11], [12], [13], [25], [8], [16], [26], [17], [27], [28], [29], [ 30] Management [31], [1], [32], [12], [33], [15], [34], [35], [36], [17], [37], [38], [39], [40], [41] Financial [22], [11], [12], [13],…”