S. N. Handayani and M. Chasani, “Screening of Secondary Metabolites Compounds in Stem Bark of Frangipangi (Plumeria alba) and Toxicity Test on Shrimp Larvae (Brine Shrimp Lethality Test)”, EKSAKTA: J. Sci. Data Anal., vol. 12, no. 1, Feb. 2012.