Formulas in chalk on a blackboard in the form of abstractionFormulas in chalk on a blackboard in the form of abstraction
Abstraction and graphics of the building in black and whiteAbstraction and graphics of the building in black and white
Image of an architectural structure on a dark backgroundImage of an architectural structure on a dark background
The picture looks like hemotric figures and balls standing next to each otherThe picture looks like hemotric figures and balls standing next to each other
То, что является источником дохода; деловое предприятие.