REFERENCES
- Kokwaro , J. O. 1976 . Medicinal Plants of East Africa , 67 Nairobi : East African Literature Bureau .
- Watt , J. M. and Breyer-Brandwijk , M. G. 1962 . The Medicinal and Poisonous Plants of Southern and Eastern Africa, , 2nd Edn. , 239 Edinburgh and London : E. and S. Livingstone .
- Troupin , G. 1985 . Flore du Rwanda, Spermatophytes , Vol. vIII , 608 Butare, , Rwanda : Institut National de Recherche Scientifique .
- Hansel , R. , Cybulski , E.-M. , Cubukcu , B. , Mericli , A. H. , Bohlmann , F. and Zdero , C. 1980 . Neue Pyronderivate aus Helichrysum-arten . Phytochemistry , 19 : 639 – 644 .
- Puyvelde , L. V. , De Kimpe , N. , Costa , J. , Munyjabo , V. , Nyirankuliza , S. , Hakizamungu , E. and Schamp , N. 1989 . Isolation of flavonoids and achalcone from Helichrysum odoratissimum and synthesis of Helichrysetin . J. Nat. Prod. , 52 : 629 – 633 .