Bhatt, Shweta, Sadhna Tripathi, and D. P. Khali. 2015. “Amelioration of Phenol Formaldehyde Adhesive With Silicic Acid for Application in Plywood”. Indian Forester 141 (4):397-402. https://doi.org/10.36808/if/2015/v141i4/68794.