"GDZ Fizika Zhilko" refers to solution manuals for physics textbooks authored by V.V. Zhilko and L.G. Markovich, commonly used in the Belarusian curriculum to assist students in checking their work. Effective use of these resources involves solving problems independently first and focusing on understanding the methodology rather than merely copying answers. You can explore these solutions on educational portals such as Resheba.me or GDZ.ru.