1. F. G. Abbasov, Extended Abstract of Candidate’s Dissertation in Agriculture (Baku, 1980).
2. I. M. Abduev, Extended Abstract of Candidate’s Dissertation in Agriculture (Baku, 1987).
3. R. A. Agabekova, Extended Abstract of Candidate’s Dissertation in Agriculture (Baku, 1984).
4. M. P. Babaev, Irrigated Soils of the Kura-Araks Lowland and Their Productive Capacity (Elm, Baku, 1984) [in Russian].
5. M. A. Belousov, Methods of Microbiological Studies and of the Determination of Microelements (Tashkent, 1973) [in Russian].