00313nam a22000737a 4500100004800000245012700048260005500175300000900230  aWaidyaratne, Asramuni Uresha Dilmi de silva  aComparative physicochmical studies of andrographis paniculata(hin-bin kohomba) cultivated in different areas of Sri Lanka/  aRajagiriya:bInstitute of Chemistry Ceylon,c2017.  a59p;