If you are looking to do further reading on Anti-Revisionism, Communism, or Dialectical Materialism, the following are the texts considered seminal in studying Marxism-Leninism.
The Real Stalin Series — An exhaustive overview of the various anti-communist myths, attacks, and slanders against Stalin, prepared by the late Dennis "Klo" McKinsey.
ML Today — A new (2019) blog dedicated to advancing Marxist-Leninist theory and preserving the theoretical work done by significant anti-revisionist thinkers.
The Espresso Stalinist Online Library — A collection of freely downloadable mostly book-length PDFs on a wide variety of issues relating to world Communism.
Soviet Revisionism — An in depth analysis of Soviet revisionism and social-imperialism.
Chinese Revisionism — An outline of the case against Dengism and Socialism with Chinese Characteristics.
Farm To Factory, Robert C. Allen — An exhaustive statistical analysis of the realities of Soviet industrialization, which dispels many common claims about collectivization.