Hussain S, Malik AA, Shahzad K, Akhthar NA, Ali N, Chughtai A. Factors Influencing the Formation of Producer gas from Coal and Biomass; A Review. JPIChE [Internet]. 2015 Dec. 3 [cited 2025 Oct. 31];43(2):133-47. Available from: https://www.piche.org.pk/journal/index.php/jpiche/article/view/197