Hermawan, W., 		Maharani, R., 		Fajriah, S., 		Hardiawan, R., & 		Supratman, U.
2010 Jul  1.  Insecticidal Bufadienolides from The Leaves of Kalanchoe daigremontiana (Crassulaceae). Jurnal ILMU DASAR. [Online] 11:2