Characterization and Biodegradation of Phenol by <i>Pseudomonas aeruginosa</i> and <i>Klebsiella variicola</i> Strains Isolated from Sewage Sludge and Their Effect on Soybean Seeds... oleh Samir A. Mahgoub, Shaza Y. A. Qattan, Salma S. Salem, Howaida M. Abdelbasit, Mohamed Raafat, Mada F. Ashkan, Diana A. Al-Quwaie, Ebtihal Abdullah Motwali, Fatimah S. Alqahtani, Hassan I. Abd El-Fattah