Homhual, Sudarat; Bunyapraphatsara, Nuntavan; Kondratyuk, Tamara; Herunsalee, Angkana; Chaukul, Wongsatit; Pezzuto, John M.; Fong, Harry H. S.; Zhang, Hong-Jie
Journal of Natural Products, 2006 , vol. 69, # 3 p. 421 - 424