I J, O. (2018) “In Vitro Anti-cholinesterase and Cognitive Enhancing Properties of Essential Oils from Piper nigrum L. and Monodora myristica (Gaertn) Dunal”, International Journal of Pharmacology and Toxicology, 6(2), pp. 34–41. doi:10.14419/ijpt.v6i2.13578.