INNOVATIONS in the professional education of teachers and trainers in the field of sustainable agriculture development : [електронно издание] / Tonya Georgieva, et al., Yvonne Grau, Malgozhata Berova, Rumyana Georgieva, Yordan Yordanov. // Bulgarian Journal of Agricultural Science , 2021, 27 (Suppl. 1), р. 61-70
ISBN 1310-0351
Др. авт. : Yvonne Grau, Malgorzata Berova, Rumyana Georgieva, Yordan Yordanov
Сист. N: 9027