Sencillos Pasos Matemáticos de Forma InteligenteAnna Zubrytska, Jane Zubrytska, Feodor Zubrytsky, Amanda Walker, Elina Tarlavina · First published 2018Open the Tome
Easy Math Steps for Fun!Jane Zubrytska, Anna Zubrytska, Feodor Zubrytskyy, Elina Tarlavina, Anna Kidalova · First published 2017Open the Tome
Easy Math Steps the Smart WayAnna Zubrytska, Jane Zubrytska, Feodor Zubrytsky, Amanda Walker, Elina Tarlavina · First published 2017Open the Tome
