“Practice Makes Perfect: Complete Spanish Grammar” by Gilda Nissenberg
“Practice Makes Perfect: Spanish Pronouns And Prepositions” by Dorothy Richmond
“Practice Makes Perfect: Spanish Verb Tenses” by Dorothy M. Devney
“Spanish Grammar for Independent Learners” (Paperback) by Arie Vicente, Avigail Azoulay
“The Ultimate Spanish Review and Practice” (Paperback) by Ronni L Gordon, David M Stillman
Spanish two years, Robert J. Nassi and Bernard Bernstein
Spanish three years, Robert J. Nassi and Bernard Bernstein
Curso de Espanol para extranjeros inicial 2, by Virgilio Borobio