Kalra, K. K. 1990. “Delignification of Refiner Mechanical Pulps from <I>Albizia lebbek< I> And <I>Eucalyplus< I> Hybrid by Sulphate Process”. Indian Forester 116 (12):974-76. https://doi.org/10.36808/if/1990/v116i12/8963.