Vol. 3 No. 2 (2025): October 2025

Articles

• Influence of Elevational and Environmental Factors on Parasitic Nematode Distribution in Arabica Coffee in the Gayo Highlands, Indonesia

  Muhammad Ipan Surna, Qalbin Salim Fazli, Tjut Chamzurni, Susanna Susanna, Ghazi Mauer Idroes

  56-66

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  DOI : 10.60084/ljes.v3i2.293

  Abstract View : 226

  PDF downloads: 331
• Optimizing Palm Oil Biodiesel Purity for a Cleaner Environment: Urea Complexation and RSM Approach

  Zohera Zohera, Zuchra Helwani, Sunarno Sunarno

  67-78

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  DOI : 10.60084/ljes.v3i2.311

  Abstract View : 133

  PDF downloads: 153
• Environmental Influence of Altitude on Coffee Leaf Rust Severity in Arabica Coffee of Aceh Tengah, Indonesia

  Teguh Arkadinata, Qalbin Salim Fazli, Alfizar Alfizar, Lukman Hakim, Ghazi Mauer Idroes

  79-86

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  DOI : 10.60084/ljes.v3i2.344

  Abstract View : 278

  PDF downloads: 243
• Geochemical Evidence from Major and Trace Elements in Geothermal Waters of Empat Lawang, Southern Sumatra: Clues to Mineralization and Hydrothermal Sources

  Rofiqul Umam, Suharno Suharno, Rahmad Junaidi

  87-98

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  DOI : 10.60084/ljes.v3i2.343

  Abstract View : 161

  PDF downloads: 151
• From Waste to Resource: Sustainable Recycling Strategies for Monocrystalline Solar Panels in Indonesia

  Muhammad Ihsan Nur Faizin, Andry Riyanto, Hernawan Heriyanto, Mei Budi Utami, Omrie Ludji, Erkata Yandri

  99-112

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  DOI : 10.60084/ljes.v3i2.340

  Abstract View : 383

  PDF downloads: 379