Vol 13 No 3 (2024)

Articles

• Nickel Extraction From Morowali Laterite Ore With a Mixture of Hydrochloric Acid (HCl) and Sulfuric Acid (H2SO4)

  Fitriani Fitriani, Daud K. Walanda, Mery Napitupulu, Vanny M. A. Tiwow, Detris Poba

  72-77

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• Analysis of calcium (Ca) and phosphorus (P) levels in meti shells (Batissa violacea L.)

  Yadi Sumarsono, Baharuddin Hamzah, Reny Reny

  78-81

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• Determination of Essential Oil Yield from Extraction and Distillation in Lemon Peel (Citrus lemon) and Kaffir lime peel (Citrus hystrix)

  Ray F. D. H. Edi, Sri H. V. Pulukadang, Reny Reny

  82-87

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• Adsorption of Iron Ions by Biocharcoal from Areca Nut Shells and Fruit Clusters

  Hesti Rebo, Daud K. Walanda, Mery Napitupulu, Vanny M. A. Tiwow

  88-92

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• The Effect of the PBL Model on Science Process Skills and Science Learning Outcomes of Students

  Abdur Rahman, Tahril Tahril, Purnama Ningsih

  93-101

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