Cây sơn và giá trị nhựa sơn
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Cây sơn và giá trị nhựa sơn
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x2Trại thí nghiệm trồng trọt Phú Hộ (1949 - 1962). 4&'b(0(N-!C
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2y Ban Nụng nghip Trung ng (1975). |3[15)%(%!2
x2UBHC Tnh Phỳ Th (1956).
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2Sở Nông nghiệp và Sở Văn hóa thông tin (1983). á[&éấ3[2fẻ
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