Chirkin A.A., Konevalova N.Yu. (1990) Differential forms of self-directed study of biochemistry in medical schools. Voprosy Meditsinskoi Khimii, 36(5), 91-92.

Chirkin A.A. et al. Differential forms of self-directed study of biochemistry in medical schools // Voprosy Meditsinskoi Khimii. - 1990. - V. 36. -N 5. - P. 91-92.

Chirkin A.A. et al., "Differential forms of self-directed study of biochemistry in medical schools." Voprosy Meditsinskoi Khimii 36.5 (1990): 91-92.

Chirkin, A. A., Konevalova, N. Yu. (1990). Differential forms of self-directed study of biochemistry in medical schools. Voprosy Meditsinskoi Khimii, 36(5), 91-92.