توثيق جمعية علم النفس الأمريكية APA (الطبعة السابعة)

2-s2.0-85165227551. (2023). Synthesis of ethyl levulinate over sulfonated lignin-based carbon catalyst as a fuel additive to biodiesel-diesel blends towards engine emissions. Journal of Cleaner Production, 418, . https://doi.org/10.1016/j.jclepro.2023.138101

توثيق أسلوب شيكاغو (الطبعة السابعة عشر)

2-s2.0-85165227551. "Synthesis of Ethyl Levulinate over Sulfonated Lignin-based Carbon Catalyst as a Fuel Additive to Biodiesel-diesel Blends Towards Engine Emissions." Journal of Cleaner Production 418 (2023). https://doi.org/10.1016/j.jclepro.2023.138101.

توثيق جمعية اللغة المعاصرة MLA (الطبعة الثامنة)

2-s2.0-85165227551. "Synthesis of Ethyl Levulinate over Sulfonated Lignin-based Carbon Catalyst as a Fuel Additive to Biodiesel-diesel Blends Towards Engine Emissions." Journal of Cleaner Production, vol. 418, 2023, https://doi.org/10.1016/j.jclepro.2023.138101.

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