المؤلفون: Burlaka, Viktor, Gryga, Irena, Shevchuk, Olena, Shevchuk, Sergii, V. Andriiv, Kubrak, Volodymyr, Smeretska, Violeta, Bozhyk, Svitlana, Pikovyi, Mykola, Kryvokon, Natalia, Yatsenko, Viktor, O. Stetskov, Kravchenko, Raisa, Poltavets, Denys, L. Volynets, Nadiia Kabachenko, Dubaseniuk, Oleksandra, Boiko, Alla, Betsa, Oleksandr, Petrova, Tetiana, Semenets, Raisa, Semigina, Tetyana

الاتاحة: https://dx.doi.org/10.13140/rg.2.2.19143.91044
http://rgdoi.net/10.13140/RG.2.2.19143.91044