TY - SER AU - Khanam, Sabiha AU - Shahid, Khadija AU - Sirajuddin, Muhammad AU - Ali, Saqib TI - Synthesis, Spectral Characterization and Biological Evaluation of Organotin(Iv) Complexes of Aniline Derivatives of Naturaliy Occurring Betulinic Acid KW - Triterpenes KW - Antimicrobial Activity KW - Antioxidant Activity ER -