The war of languages. - Neelima Shirkhande; L. P. S. Singh (ACM SIGCSE Bull., 1986)

On Table Fragmentation in Virtual Memory Management. - I. Rattan; L. P. S. Singh (ACM SIGOPS Oper. Syst. Rev., 1986)

Packing Designs with Block Size 5 and Index 2: The Case v Even. - Ahmed M. Assaf; Nabil Shalaby; L. P. S. Singh (J. Comb. Theory A, 1993)

Packing pairs by quintuples with index 2: v odd, v != 13 (mod 20). - Ahmed M. Assaf; L. P. S. Singh (Discret. Math., 1994)

Tripacking of pairs by quintuples the case v=2 (mod 4). - Ahmed H. Assaf; L. P. S. Singh (Ars Comb., 1995)

On covering designs with block size 5 and index 11≤λ≤21: the case v≡0(mod 4). - Ahmed M. Assaf; L. P. S. Singh (Australas. J Comb., 1997)

On Packing Designs with Block Size 5 and Indexes 3 and 6. - Ahmed M. Assaf; Nabil Shalaby; L. P. S. Singh (Ars Comb., 1997)

Directed Covering with Block Size 5 and Index Odd. - Ahmed M. Assaf; H. Alhalees; L. P. S. Singh (Electron. Notes Discret. Math., 2002)

Directed covering with block size 5 and v even. - Ahmed M. Assaf; H. Alhalees; L. P. S. Singh (Australas. J Comb., 2003)