Ahmad, N., S. M. H. Aejaz, A. Naeem, M. Shahnawaz, and S. Saadat. “INVESTIGATION OF THE MINERAL CONTENTS OF SOME VARIETIES OF POWDER MILK BY PIXE”. The Nucleus, vol. 47, no. 2, May 2010, pp. 161-4, http://202.83.167.189/index.php/Nucleus/article/view/900.