Tasic، Tadej؛ Pogorevc، Primoz؛ Brajlih، Tomaz (2011). "Gasoline and LPG exhaust emissions comparison"(PDF). Advances in Production Engineering & Management. Maribor, Slovenia: University of Maribor, Faculty of Mechanical Engineering. مؤرشف من الأصل(PDF) في 2017-01-17. اطلع عليه بتاريخ 2018-06-28.
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Tasic، Tadej؛ Pogorevc، Primoz؛ Brajlih، Tomaz (2011). "Gasoline and LPG exhaust emissions comparison"(PDF). Advances in Production Engineering & Management. Maribor, Slovenia: University of Maribor, Faculty of Mechanical Engineering. مؤرشف من الأصل(PDF) في 2017-01-17. اطلع عليه بتاريخ 2018-06-28.
