Charmaine Solomon (1998). "Cha plu". Encyclopedia of Asian Food. Periplus Editions. Diarsipkan dari versi asli tanggal 2008-06-15. Diakses tanggal 2023-03-15.
Steven T. S. Lim; Klaus Dragull; Chung-Shih Tang; Harry C. Bittenbender; Jimmy T. Efird; Pratibha V. Nerurkar (2007). "Effects of kava alkaloid, pipermethystine, and kavalactones on oxidative stress and cytochrome P450 in F-344 rats". Toxicological Sciences. 97 (1): 214–221. doi:10.1093/toxsci/kfm035. PMID17329236.
Kumar, A.; et al. (2008). "Novel structural analogues of piperine as inhibitors of the NorA efflux pump of Staphylococcus aureus". Journal of Antimicrobial Chemotherapy. 61 (6): 1270–1276. doi:10.1093/jac/dkn088. PMID18334493.
"Tropical root crops". Earthcare. 2008. Diarsipkan dari versi asli tanggal 19 July 2008. Diakses tanggal 15 July 2008.Parameter |url-status= yang tidak diketahui akan diabaikan (bantuan)
Steven T. S. Lim; Klaus Dragull; Chung-Shih Tang; Harry C. Bittenbender; Jimmy T. Efird; Pratibha V. Nerurkar (2007). "Effects of kava alkaloid, pipermethystine, and kavalactones on oxidative stress and cytochrome P450 in F-344 rats". Toxicological Sciences. 97 (1): 214–221. doi:10.1093/toxsci/kfm035. PMID17329236.
Kumar, A.; et al. (2008). "Novel structural analogues of piperine as inhibitors of the NorA efflux pump of Staphylococcus aureus". Journal of Antimicrobial Chemotherapy. 61 (6): 1270–1276. doi:10.1093/jac/dkn088. PMID18334493.
Charmaine Solomon (1998). "Cha plu". Encyclopedia of Asian Food. Periplus Editions. Diarsipkan dari versi asli tanggal 2008-06-15. Diakses tanggal 2023-03-15.
"Tropical root crops". Earthcare. 2008. Diarsipkan dari versi asli tanggal 19 July 2008. Diakses tanggal 15 July 2008.Parameter |url-status= yang tidak diketahui akan diabaikan (bantuan)