Zvirgzdina, Rosita, Dace Sakena, and Iveta Linina. “PRODUCT MARKET EXPANSION STRATEGY FOR BUSINESS DEVELOPMENT OF THE COMPANIES OPERATING IN THE FIELD OF PREMISES CLEANING”. ENVIRONMENT. TECHNOLOGIES. RESOURCES. Proceedings of the International Scientific and Practical Conference 1 (June 13, 2023): 252–257. Accessed November 23, 2024. https://journals.ru.lv/index.php/ETR/article/view/7209.