Bivainis, Juozas, and Irena Daukševičiūtė. “Analysis of Methodological Presumptions for Optimisation of Marketing Programmes”. Business: Theory and Practice 14, no. 2 (March 11, 2013): 103-116. Accessed November 30, 2024. https://transport.vgtu.lt/index.php/BTP/article/view/8511.