B. S. PARMAR; A.V. SINGH. DRY SIEVE TECHNIQUE FOR UP GRADATION OF FINE LIGNITE COAL DEPOSITS AT MATASUKH MINES OF NAGAUR, RAJASTHAN, INDIA. International Journal of Advance Engineering and Research Development (IJAERD), [S. l.], v. 5, n. 4, p. 2478–2484, 2018. Disponível em: https://www.ijaerd.org/index.php/IJAERD/article/view/3375. Acesso em: 6 jul. 2025.