M. Umar
发表
N. M. Gatawa,
S. Elijah,
M. Umar,
2018
.
Oluwatoyin Muse Johnson Popoola,
Chek Derashid,
M. Umar,
2019,
Indian-Pacific Journal of Accounting and Finance.
Chek Derashid,
Idawati Ibrahim,
M. Umar,
2017
.
L. Maijamaa,
M. Umar,
Danjuma Maijama’a,
2015
.
S. Lame,
M. Umar,
Danjuma Maijama’a,
2014
.
M. Umar,
Nyende Festo Tusubira,
2017
.
Jauhari Dahalan,
M. Umar,
2015
.
H. Abdullah,
Jauhari Dahalan,
M. Umar,
2017
.
Jauhari Dahalan,
M. Umar,
Jauhari B Dahalan,
2016
.
Jauhari Dahalan,
M. Umar,
Мохаммед Умар,
2016
.
M. Adamu,
M. Umar,
Danjuma Maijama’a,
2014
.
Abdulsalam Mas'ud,
M. Umar,
2020
.
Abdulsalam Mas'ud,
Mohammed Abdullahi Umar,
Abdulsalam Mas'ud,
2019,
Int. J. Enterp. Inf. Syst..
Jauhari Dahalan,
M. Umar,
Jauhari B Dahalan,
2015
.
H. Abdullah,
Jauhari Dahalan,
M. Umar,
2016
.
Z. Bidin,
Chek Derashid,
Idawati Ibrahim,
2019,
International Journal of Social Economics.
Chek Derashid,
Idawati Ibrahim,
M. Umar,
2016
.
Challenges of tax revenue generation in developing countries: Adopting the carrot and stick approach
Chek Derashid,
Idawati Ibrahim,
M. Umar,
2017
.