Blas, B. (1988). Surveys, studies, and control work on schistosomiasis japonicum infection in the Philippines. Department of Health.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रBlas, Bayani. Surveys, Studies, and Control Work on Schistosomiasis Japonicum Infection in the Philippines. Manila: Department of Health, 1988.
एमएलए (9वां संस्करण) प्रशस्ति पत्रBlas, Bayani. Surveys, Studies, and Control Work on Schistosomiasis Japonicum Infection in the Philippines. Department of Health, 1988.
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