Sahari, I. S., Assim, Z., Ahmad, F. B., & Jusoh, I. B. (1). Essential Oils from Fresh Fruits, Fruit Stalks and Stem Barks of Four Piper nigrum Varieties from Sarawak. Borneo Journal of Resource Science and Technology, 3(1), 43-51. https://doi.org/10.33736/bjrst.255.2013