Azra Pervin Students on the chemical constituents of petchia ceylanica and related / Azra Pervin - ISLB AIOU 1990. - 215p. HB PHD eng Standard No.: https://i.ibb.co/DcNFC41/Thesis-cover.png Subjects--Topical Terms: Dissertations, Academic-PHD Chemistry Dewey Class. No.: 547.72 / AZS