A useful book in Russian mentions some important points about zakah and others about fasting such as Ramadan virtues, along with some related points that lots of people may not know.
A book in Russian shows the creed of the four Imams: Abu Hanifa, Malek, Shafeai, and Ahmad ibn Hanbal, which is in harmony with the Quran and the Sunnah, without any difference between them about any aspect of the Islamic belief.
A book in Russian confirms that each act of worship has a certain way to perform which Allah or his Prophet (peace be upon him) clarified. This article shows and describes in detail the Prophet's prayer.