Porozovs, J. , Voita, D. , Kauliņa, A. , Voits, T. , Vaļēviča, E.. "Improvement of Learning Motivation and Negotiation of Learning Disorders of Students Using Integrative Teaching Methodology". World Academy of Science, Engineering and Technology, Open Science Index 75, International Journal of Educational and Pedagogical Sciences, (2013), 7(3), 825 - 830.