KUBAEV ASALIDDIN ESIRGAPOVICH; XUDAYKULOVA SHOIRA NARZULLAEVNA; MUHAMMADKULOVA MOXIBONU KOMILJONOVNA. EFFECTIVENESS OF PREPARATION AND USE OF MANUALS, ELECTRONIC TEXTBOOKS. International Engineering Journal For Research & Development, [S. l.], v. 6, n. ICIPPS21, p. 2, 2021. DOI: 10.17605/OSF.IO/TWYKN. Disponível em: https://iejrd.com/index.php/iejrd/article/view/1812. Acesso em: 22 jul. 2026.