1. Aliustaoğlu S and Ayhan V 2019 The effects of LPG-diesel dual fuel mixture on performance and smoke emissions in a direct injection diesel engine. J. Adv. Technol. Sci. 8(2): 110–116
2. Anonymous 2018 LPG Consumer's Handbook, Energy Market Regulatory Board, Ankara/Turkey
3. Usman M, Farooq M, Naqvi M, Saleem M W, Hussain J, Naqvi S R, Jahangir S, Usame H M J, Idrees S and Anukam A 2020 Use of gasoline, LPG and LPG-HHO blend in SI engine: a comparative performance for emission control and sustainable environment. Processes 8(74): 1–15
4. Musthafa M M 2019 A comparative study on coated and uncoated diesel engine performance and emissions running on dual fuel (LPG-biodiesel) with and without additive. Ind. Crops Products 128: 194–198
5. Ahn S, Cho J, Baek S, Kim K, Ko J, Myunh C L and Park S 2020 Comparative investigation of gaseous emissions and particle emission characteristics from turbo-charged direct injection (DI) engine with gasoline and LPG fuel depending on engine control parameters. Int. J. Automot. Technol. 21(2): 451–457