Bakhsh, Z. A., Al-Khatib, T. A., Al-Muhayawi, S. M., ElAssouli, S. M., Elfiky, I. A., & Mourad, S. A. (2015). Evaluating the therapeutic efficacy, tolerability, and safety of an aqueous extract of Costus speciosus rhizome in acute pharyngitis and acute tonsillitis: A pilot study. Saudi Med J.

Bakhsh, Zainab A., Talal A. Al-Khatib, Saad M. Al-Muhayawi, Sufian M. ElAssouli, Iman A. Elfiky, e Samiha A. Mourad. "Evaluating the Therapeutic Efficacy, Tolerability, and Safety of an Aqueous Extract of Costus Speciosus Rhizome in Acute Pharyngitis and Acute Tonsillitis: A Pilot Study." Saudi Med J 2015.

Bakhsh, Zainab A., et al. "Evaluating the Therapeutic Efficacy, Tolerability, and Safety of an Aqueous Extract of Costus Speciosus Rhizome in Acute Pharyngitis and Acute Tonsillitis: A Pilot Study." Saudi Med J 2015.