Islom Khafizov, Komil Gafforov, and Bektosh Miyliyev. “ADVANTAGES OF USING A VARIABLE SPEED DRIVE IN PUMPING UNITS”. Emergent: Journal of Educational Discoveries and Lifelong Learning (EJEDL) 2, no. 05 (May 21, 2021): 131–142. Accessed November 26, 2024. https://ejedl.academiascience.org/index.php/ejedl/article/view/67.