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		Wibawa, I., 		Saraswaty, V., 		Kuswantoro, F., 		Andila, P., 		Wardhani, P., 		Tirta, I., & 		Sujarwo, W.
2019 Dec 30.  A study of essential oil from an invasive Piper aduncum L.. Jurnal Biologi Udayana. [Online] 23:2