TY - ADVS AU - Patel, Harshal S. TI - Optimization of Supercritical Fluid Extraction and Microwave Assisted Extraction of Betulinic Acid From Dillenia Indica Bark Using Experimental Design U1 - 615.1901 PY - 2013/// CY - Ahmedabad PB - Institute of Pharmacy, Nirma University KW - Pharmaceutical Analysis N1 - Mr. Nrupesh R. Patel ER -