WIBOWO, M. A.; PURNOMO, B. B.; WIDODO, M. A.; AULANNI’AM, A. THE N-HEXANE FRACTION OF KESUM (Polygonum Minus L.) INDUCE APOPTOSIS THE LUNG EPITHELIAL CELLS OF THE RATUS NOVERGICUS THAT EXPOSED BY BENZOPYRENE. BERKALA PENELITIAN HAYATI JOURNAL OF BIOLOGICAL RESEARCHES, v. 18, n. 1, p. 69-73, 21 Oct. 2013.