N. M. Paderes and D. B. Eloisan, “Phytochemical and Antibacterial Screening of Euphorbia thymifolia Linn and Cassia alata Linn Species in the Province of Abra, Philippines: An Alternative Source of Antibiotics”, jpair, vol. 26, no. 1, pp. 36–49, Oct. 2016, doi: 10.7719/jpair.v26i1.415.