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Weight loss of particleboard samples after 4-week exposure to Coptotermus curvignathus. Note: Means followed by the different letters a, b, c and d are significantly different at p ≤ 0.05. CA10 = 10 wt% citric acid, CA15 = 15 wt% citric acid, CA20 = 20 wt% citric acid.
