Nabijonov Ravshanbek Muxammadjon o‘g‘li and Azamov Shohruhmirzo Alisher o‘g‘li 2022. MA’LUMOTLAR BAZASIDA MURAKKAB QIDIRUV TIZIM USULLARI VA ALGORITMLARI . Journal of new century innovations. 15, 2 (Oct. 2022), 38–40.