ะ—ะฐะบะฐะทะฐั‚ัŒ ั€ะตะบะปะฐะผัƒ ะฒ ุดุจูƒุฉ ุงู„ูƒูŠู…ูŠุงุก ุงู„ุชุทุจูŠู‚ูŠุฉ | Applied Chemistry โ€” Telagon