@article {233499,
	title = {A method for maximizing biogas production by using laser radiation and nanoparticles},
	year = {2020},
	attachments = {https://scholar.cu.edu.eg/sites/default/files/yattia/files/br_khtr_rqm_1.jpg},
	author = {M. Samer and Yasser A. Attia and Essam M. Abdelsalam}
}
