5 1 10 the experimental analysis of distribution and abundance Khwaja Sarmad Additional Author Kerbs, Charles Additional Author mixed material 60437715 carbon, nitrogen phosphorus, sulfur, micronutrients Khwaja Sarmad Additional Author Stevenson, F. J. Additional Author mixed material 471822183 Khwaja Sarmad Additional Author Bakhtiar Ali. Additional Author mixed material (PBK) Khwaja Sarmad Additional Author Hayatullah Khan. Additional Author mixed material (PBK) Khwaja Sarmad Additional Author جمیل یوسف Additional Author mixed material