AŽUBALIS, ALGIRDAS. BOOK CARRIER PETRAS MIKOLAINIS’ BOOK OF PROBLEMS IN ARITHMETIC. Knygotyra, [S. l.], v. 52, p. 136–144, 2015. DOI: 10.15388/kn.v52i0.7872. Disponível em: https://www.journals.vu.lt/knygotyra/article/view/7872.. Acesso em: 28 apr. 2024.