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Z.H. Naqvi, M. Mushtaq-ul-Hassan, Z. Chaudry, M. Akram and R. Ahmad, 2000. Effect of Effective Microorganisms (EM4) on Health of Layers. Pakistan Journal of Biological Sciences, 3: 1516-1518.
DOI: 10.3923/pjbs.2000.1516.1518
URL: https://scialert.net/abstract/?doi=pjbs.2000.1516.1518
DOI: 10.3923/pjbs.2000.1516.1518
URL: https://scialert.net/abstract/?doi=pjbs.2000.1516.1518