মশা দিবসে কলকাতা ভুলে থাকল রোনাল্ড রসকে, মহানগরের সঙ্গে কী তাঁর সম্পর্ক | TheWall
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Source: https://thewall.in/news/kolkata-2/news-world-mosquito-day-discovery-of-malaria-transmission-by-sir-ronald-ross-in-kolkata/