You can find the DJVU file for (1984) by L.N. Popov through several specialized digital libraries and technical archives. This 168-page manual is a standard reference for construction material testing procedures. Where to Find the DJVU File
Search for "Popov L.N." or the Russian title "Лабораторные испытания строительных материалов" . It is frequently mirrored here in both DJVU and PDF formats. You can find the DJVU file for (1984) by L
You can also find "DjVu Viewer" extensions for Chrome or Firefox if you prefer not to install standalone software. Where to Find the DJVU File Search for "Popov L
This is one of the most reliable sources for Soviet-era technical textbooks. You can search for the specific 1984 edition in their Building Materials section. Note that a free registration is usually required to download. This is one of the most reliable sources
Since the file is in , you will need a specific reader to open it: WinDjView: The most popular lightweight reader for Windows.