1

a BRITISH NATIONAL FORMULARY 1987, 1988, 1990

2

a MARTINDALE THE EXTRA PHARMACOPOEIA 28TH EDITION

1982

3

a MARTINDALE THE EXTRA PHARMACOPOEIA 29TH EDITION

1989

4

a THE USE OF ESSENTIAL DRUGS W.H.O ORGANIZATION GENEVA

1985

5

a THE USE OF ESSENTIAL DRUGS W.H.O ORGANIZATION GENEVA

1988

6

_ THE USE OF ESSENTIAL DRUGS W.H.O ORGANIZATION GENEVA

1990

7

a A.M.A DRUG EVALUATION FIFTH EDITION

1983

8

_ DRUG CONSUMPTION DATA OF G.C.C COUNTRIES

1989, 1990