1. Werdani, Y.D.W. and P.S. Widyawati, 2018. Antidiabetic effect of Pluchea Indica Less tea as a functional beverage in diabetic patients. Adv. social sci. Educ. Humanities Res., (ASSEHR). 98: 164-167.
2. Widyawati, P.S., Y.D.W. Werdani, C. Setiokusumo and A. Kartikasari, 2017. In Vitro antioxidant capacities and antidiabetic properties of pluchea leaves and green tea mixtures at various proportions. Int. J. Pharm. Pharm. Sci., 9: 203-208.
3. Widyawati, P.S., T.D.W. Budianta, A.R. Utomo and I. Harianto, 2016. The physicochemical and antioxidant properties of Pluchea Indica Less drink in tea Bag packaging. Int. J. Food Nut. Sci., 5: 113-120.
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4. Widyawati, P.S., 2016. Determination of antioxidant capacity in Pluchea indica Less leaves extract and its fractions. Int. J. Pharm. Pharm. Sci., 8: 32-36.
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5. Widyawati, P.S., T.D.W. Budianta, D.I. Gunawan and R.S. Wongso, 2015. Evaluation antidiabetic activity of various leaf extracts of Pluchea indica Less. Int. J. Pharm. Phy. Res., 7: 597-603.
6. Widyawati, P.S., T.D.W. Budianta, F.A. Kusuma and E.L. Wijaya, 2014. Difference of solvent polarity to phytochemical content and antioxidant activity of Pluchea indicia less leaves extracts. Int. J. Pharmacogn. Phytochem. Res., 6: 850-855.
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7. Widyawati, P.S., C.H. Wijaya, P.S. Hardjosworo and D. Sajuthi, 2013. Volatile compounds of pluchea indica less and Ocimum basillicum linn essential oiland potency as antioxidant. HAYATI. J. Biosci., 20: 117-126.
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8. Widyawati, P.S., A.M. Suteja, T.I.P. Suseno, P. Monika, W. Saputrajaya and W. Liguori, 2013. The effect of different pigment color from organic rice to antioxidant activity. Agritech, 34: 399-406.
9. Widyawati, P.S., C.H. Wijaya, P.S. Hardjosworo and D. Sajuthi, 2012. Antioxidant activity of pluchea (Pluchea indica Less) leaves methanolic extract and its fractions. Agritech, 32: 249-257.
10. Widyawati, P.S., C.H. Wijaya, P.S. Hardjosworo and D. Sajuthi, 2011. Evaluation of antioxidant activity from pluchea leaves extract (Pluchea indica Less) based on leaf segment level. Rekapangan J. Teknol., 5: 1-14.
11. Widyawati, P.S., C.H. Wijaya, P.S. Hardjosworo and D. Sajuthi, 2010. The effect of extraction and fractionation to antioxidative properties of Pluchea leaves (Pluchea indica Less). J. Agroteknol., 4: 183-193.
12. Widyawati, P.S., 2006. The adsorption kinetics of iron (II) ion by Chaetoceros sp. Biota, 11: 162-169.
13. Widyawati, P.S., 2005. The potency of kemangi (Ocimum Basillicum Linn) as DPPH (2,2-Diphenyl-1-pycrylhidrazil radical) free radical scavenging. Agritech, 25: 137-142.
14. Kusumawati, N., P.S. Widyawati and M.M. Matoetina, 2004. The potency of wheat bran and pollard extracts as iron (III) ion reducing. J. Teknol. Pangan Gizi, 5: 64-70.
15. Widyawati, P.S., 2002. The potency of flavonoid bioactive compounds as antioxidant in biological system. J. Teknol. Pangan Gizi, 3: 31-40.
16. Widyawati, P.S., 2002. The paraquat effect of hydrogen peroxide production in Spinach (Spinacia oleraceae L) leaves chloroplast. Agritech, 22: 26-29.