World science: problems, prospects and innovations
4(117). P. 86 ? 94. 6. Ivaschenko V.P., Shvachych G.G., Semenov S.G. ... There are usually such types of games as exercise games, game discussions,.
4(117). P. 86 ? 94. 6. Ivaschenko V.P., Shvachych G.G., Semenov S.G. ... There are usually such types of games as exercise games, game discussions,.