Gaya APA
Murthi, W.
(1983).
Senam Yoga : Belajar Pratek
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surabaya:
Surya Murthi Publishing.
Gaya MLA
Murthi, Widya.
"Senam Yoga : Belajar Pratek".
surabaya:
Surya Murthi Publishing,
1983.
Buku.