Normatov Haydar Zafar o‘g‘li (2025) “MILITARY COMMANDS AND SIGNALS INVOLVING SPECTROGRAMS, PITCH, AND FREQUENCY MEASUREMENTS”, XALQARO ILMIY-AMALIY ANJUMAN “GLOBAL LINGVISTIKA: YANGI YONDASHUVLAR VA TADQIQOTLAR”, 1(2), pp. 547–551. doi: 10.5281/zenodo.15454916.