Welcome Speech: Dean of Faculty of Mathematics and Natural Science, Universitas Negeri Gorontalo by Lukum Astin

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APPLICATIONOF CHITOSAN FROM Peneaus monodon AS COAGULANT OF Pb(lI) IN WASTE WATER FROM TOLANGOHULA SUGAR FACTORY KABUPATEN GORONTALO by Lukum, Astin, Djafar, Fajriyanto

Improving Students’ Learning Outcomes Using The Team Based Learning Model With Multi-representation Approach On Electrolyte and Non Electrolyte Solutions by Pikoli Masrid, Botuihe Nurmeyla U., Lukum Astin

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Application of Shrimp Shell Waste Chitosan as Edible Coating to Extend the Shelf-Life of Tomato (Solanum lycopersicum L.) by Lukum Astin, Kadir Amelia, Sukamto Kostiawan, Mohamad Erni, Thayban Thayban, Rizki Paramata Arfiani

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Analysis of Student’s Conceptual Understanding Using Two-Tier Multiple Choice Diagnostic Test on Acid-Base Topic by Lukum Astin, Karongkong Nisma, Pikoli Masrid, Tangio Julhim S., Mohamad Erni, Rewini Kunusa Wiwin

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The Effect of Project Based Learning with Fhotonovela to Ability Student in Solve Problem Warming Global by Rewini Kunusa Wiwin, Yasin Hadija S., Abdul Rauf Laliyo Lukman, Lukum Astin, La kilo Akram, Alio La

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