Ссылки
[1] http://www.tsa.lt
[2] https://imoniukatalogai.lt/ru/svyaz-informacionnye-tehnologii-kompyutery/uslugi-svyazi-operatory-oborudovanie-ustanovka
[3] https://www.google.com/maps?q=M.+Pretorijaus+g.+5-3%2C+LT-06227+Vilnius&hl=lt&z=14&t=m
[4] https://www.addtoany.com/share#url=https%3A%2F%2Fimoniukatalogai.lt%2Fru%2Ftelekomunikaciniu-sistemu-administravimas-uab&title=Telekomunikacini%C5%B3%20Sistem%C5%B3%20Administravimas%2C%20UAB