SAYED A. AHMED, MAHMOUD AL-REFAI, ALZAHRAA OSAMA, and EMADELDIN M. KAMEL. 2016. “ANTIMICROBIAL ACTIVITIES AND THE FIRST ISOLATION OF 4-NITROBENZOIC ACID TETRAHYDROFURAN-2-YL-METHYLESTER AND 4-HYDROXY-5-METHYLFURAN-3-ONE FROM TERRESTRIAL STREPTOMYCES SP”. International Journal of Pharma and Bio Sciences 7 (1):45-55. https://ijpbs.net/index.php/journal/article/view/4837.