R. V. Guerrero, R. A. Vargas, and V. L. Petricevich, “CHEMICAL COMPOUNDS AND BIOLOGICAL ACTIVITY OF AN EXTRACT FROM BOUGAINVILLEA X BUTTIANA (VAR. ROSE) HOLTTUM AND STANDL”, Int J Pharm Pharm Sci, vol. 9, no. 3, pp. 42–46, Mar. 2017.