Fahmi, H., syaiful malik jenifer, and anrinal anrinal. “Micro MICRO STRUCTURE ANALYSIS, LIGNIN CONTENT AND HEMICELLULOSE FIBER FROM PALM OIL DUE TO ALKALI TREATMENT”. ReTII, Oct. 2020, pp. 339-44, //journal.itny.ac.id/index.php/ReTII/article/view/2071.