Number

Authors

Year

Level

Criteria

Tools


1

Zhao [
51
]

Unit

N

Y
 
2

Zhao [
8
]

2003

Unit

Y

N

3

Xie and Zhao [
52
]

2006

–

Y

Y

4

Lemos and Masiero [11]

2007

Unit

Y

Y

5

Bernardi and Lucca [
45
]

2007

Integration

Y

Y

6

Xu and Rountev [
53
]

2007

Unit

N

Y

7

Lemos et al. [14]

2009

Integration

Y

Y

8

Neves et al. [46]

2009

Integration

Y

Y

9

Wedyan and Gosh [
15
]

2010

Integration

Y

Y

10

Lemos and Masiero [16]

2011

Integration

Y

Y

11

Cafeo and Masiero [24]

2011

Integration

Y

Y

12

Mahajan et al. [
25
]

2012

–

N

N

13

Wedyan et al. [
29
]

2015

Integration

Y

Y


Y/N yes/no, − not mentioned