Standards for compaction of dense roadbase macadam অনুযায়ী Powell, W. D.

A dense coated roadbase macadam of improved performance অনুযায়ী Leech, D.

Deformation resistance of dense coated macadams effect of compaction and binder content অনুযায়ী Leech, D.

Management of engineering design অনুযায়ী Leech, D J