فیوم سیلیکا (Persian Wikipedia)

Analysis of information sources in references of the Wikipedia article "فیوم سیلیکا" in Persian language version.

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astm.org%22

"ASTM C1240. Standard Specification for Silica Fume Used in Cementitious Mixtures, http://astm.org%22^{^{[پیوند مرده]}}

cen.eu%22

"EN 13263 Silica fume for concrete. http://www.cen.eu%22^{^{[پیوند مرده]}}