"GRIN Species Records of Turnera". Germplasm Resources Information Network. United States Department of Agriculture. Diarsipkan dari asli tanggal 2015-09-24. Diakses tanggal 2011-01-29.
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"GRIN Species Records of Turnera". Germplasm Resources Information Network. United States Department of Agriculture. Diarsipkan dari asli tanggal 2015-09-24. Diakses tanggal 2011-01-29.