D. P. Singh
发表
V. Singh,
D. P. Singh,
Dhermendra Pratap Singh,
2016
.
Syed Azizur Rahman,
K. Prasad,
Kameshwar Prasad,
2016
.
L. Dwivedi,
M. Bhatia,
D. P. Singh,
2021,
The International Journal of Community and Social Development.