Pankaj Khatak
发表
Munish Kumar,
Pankaj Khatak,
2020
.
Pankaj Khatak,
H. C. Garg,
2018
.
Pankaj Khatak,
Mahesh Kumar,
S. K. Sansaniwal,
2016
.
Pankaj Khatak,
Ravinder Kumar Sahdev,
Om Prakash,
2011
.
Pankaj Khatak,
H. C. Garg,
P. Khatak,
2012
.