Ouppariputtigul, P., S. Therasakvichaya, C. Thirapakawong, S. Senapad, S. Neungton, S. Piamsombon, S. Therasakvichaya, and C. Leelaphatanadit. “Preliminary Report of Ifosfamide plus Epirubicin in Platinum - Resistant Epithelial Ovarian Cancer”. Thai Journal of Obstetrics and Gynaecology, vol. 11, no. 3, Sept. 1999, pp. 173-8, https://he02.tci-thaijo.org/index.php/tjog/article/view/257136.