PHYTOCHEMICAL CONSTITUENTS OF WEEDS: BASELINE STUDY IN MIXED CROP ZONE AGROECOSYSTEM Muhammad Mahmood-Ul-Hassan Munawar Iqbal Shahnaz Akhtar Rana Rana Nureen Rana Muhammad Nadeem Abbas Abbas DOI: https://doi.org/10.28941/pjwsr.v19i2.500 PDF Published 2013-06-01 Issue Year 2013, Volume 19 , Issue 2 Section Articles