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Where can I find the costs (online) of specific batteries? - silver cité ottawa

Button batteries are zinc air miniature silver oxide batteries. I do a thesis on the report on the technique of artificial retina based. I attach a table with information about their comparative costs. However, I can) no information on the battery of the latter (the cell. My teacher, I would like to use only one bid for all the information I need. If someone found the price of two in a trusted site, your help is appreciated. Also if anyone knows of similar batteries, the information would be useful.