Tira, Hendry Sakke, et al. “Analysis of the Calorific Value and Specific Gravity of Breadfruit Peel Bioalcohol (Artocarpus Altilis) As an Alternative Fuel at Various Distillation Temperatures”. Jurnal Penelitian Pendidikan IPA, vol. 9, no. 7, July 2023, pp. 5163-9, doi:10.29303/jppipa.v9i7.2878.