Year |
Author |
M |
Factors |
A |
B |
C |
D |
E |
F |
G |
GU |
IN |
L |
P |
PU |
R |
S |
TR |
1997 |
Hobbs |
S |
X |
|
X |
|
|
|
|
X |
|
|
X |
X |
|
X |
X |
1999 |
Fenwick & Lyne |
S |
X |
|
|
|
|
|
|
|
X |
X |
X |
|
|
|
|
2000 |
Key, Sadoulet & Janvry |
S |
|
|
|
X |
|
|
|
|
|
|
|
X |
|
|
X |
2000 |
Vernimmen, Verbeke & Van Huylenbroeck |
S/Q |
|
|
|
X |
|
|
X |
|
|
X |
|
|
|
|
|
2001 |
Matungul, Lyne & Ortmann |
S/Q |
X |
|
|
X |
X |
|
X |
|
X |
X |
|
|
|
|
X |
2001 |
De Bruyn, De Bruyn., Vink & Kirsten |
Q |
|
X |
|
|
|
|
|
X |
|
|
X |
X |
X |
X |
X |
2001 |
Makhura |
I/G |
X |
|
|
X |
|
|
|
|
X |
|
|
|
|
|
X |
2004 |
Nkhori |
Q/I |
X |
|
|
X |
|
|
|
X |
|
|
|
X |
X |
X |
X |
2007 |
Gong, W., Parton, K., Cox, R. J., & Zhou |
Q/I |
X |
|
|
|
X |
X |
|
X |
|
|
X |
X |
|
|
X |
2008 |
Kyeyamwa, Speelman, Van Huylenbroeck, Opuda-Asibo & Verbeke |
Q/S |
X |
|
|
X |
X |
|
|
|
X |
|
|
|
X |
|
|
2009 |
Shiimi |
Q/S |
X |
X |
|
|
X |
|
X |
|
|
|
X |
X |
|
|
X |
2010 |
Jagwe |
Q/I |
X |
X |
|
X |
X |
|
|
|
X |
|
|
|
X |
|
|
2011 |
Broderick, Wright & Kristiansen |
I |
|
|
X |
|
|
|
|
X |
|
X |
|
X |
|
|
X |
2012 |
Koatla |
Q |
X |
|
|
X |
X |
|
|
|
X |
X |
|
X |
|
|
X |
2012 |
Viana,, Silveira, Arbage, & Machado |
Q/I |
|
|
|
X |
|
X |
|
X |
|
X |
|
|
X |
X |
X |
2013 |
Jordaan & Grove |
Q/I |
X |
|
|
|
|
X |
|
|
X |
|
X |
|
|
|
|
2014 |
Lijia and Xuexi |
Q |
|
|
|
|
X |
|
|
|
X |
X |
|
X |
X |
|
X |
2014 |
Martey et al. |
Q/S |
|
|
|
X |
|
|
|
|
|
|
X |
|
X |
|
X |