ARTICLES

• SPECTROPHOTOMETRIC DETERMINATION OF HEAVY METALS IN COSMETICS SOURCED FROM KADUNA METROPOLIS, NIGERIA

  M.B. Nasirudeen, A.U. Amaechi

  1-5

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• A CASH FLOW EOQ INVENTORY MODEL FOR NON-DETERIORATING ITEMS WITH CONSTANT DEMAND

  S. Dari, D.C. Ambrose

  6-21

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• AN EXCEL TEMPLATE FOR PROCESSING EXAMINATION RESULTS FOR HIGHER INSTITUTIONS IN NIGERIA

  A.S. Magaji, Sa'adatu Abdulkadir

  22-31

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• COMPARATIVE STUDIES ON THE EFFICIENCY OF LEMNA MINOR L., EICCHORNIACRASSIPES AND PISTIASTRATIOTES IN THE PHYTOREMEDIATION OF REFINERY WASTE WATER

  A.Y. Ugya, I.M. Toma, A. Abba

  32-36

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