N.Imomova, X.Muratov, А.Хudoyberdiyev, R.Rozikov. “Influence Of PH on Biogas Production from Organic Waste at High Voltage Pulse Current”. Texas Journal of Agriculture and Biological Sciences, vol. 10, Nov. 2022, pp. 119-21, https://zienjournals.com/index.php/tjabs/article/view/2860.