Որոնման արդյունքները - American Public Health.

Control of communicable diseases in man ‌ Benenson, Abram S.

“…American Public Health.…”

American journal of public health

“…American Public Health Association…”
Available in Education Source.

Caring for our children : national health and safety performance standards, guidelines for early care, and education programs.

“…APHA Press, imprint of American Public Health Association ; American Academy of Pediatrics ; National Resource Center for Health and Safety in Child Care and Early Education,…”
Digitalia Hispánica