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?EFFECT OF pH ON NI ADSQRPTION IN ORGi\.NO .•MINERAL COMPLEXES. Pakistan Journal of Scientific & Industrial Research [Internet]. 1999 Apr. 19 [cited 2026 Mar. 10];42(2):59-62. Available from: https://www.v2.pjsir.org/index.php/biological-sciences/article/view/2112