00309nam a22000977a 450000500170000008200140001710000180003124500750004926000770012430000100020120260122113942.0  a580 PAR.F  aParvathi A.P.  aFormulation and evaluation of natural hair dyes using herbal resources  aThiruvanathapuram: bDepartment of botany, University of Kerala, c2025.  a44 p.