Naimpathy, S. (1963). A new course in trignometry (2nd.). Popular Prakashan.
Chicago-čujuhus (17. p.)Naimpathy, S. A New Course in Trignometry. 2nd. Bombay: Popular Prakashan, 1963.
MLA-čujuhus (9. p.)Naimpathy, S. A New Course in Trignometry. 2nd. Popular Prakashan, 1963.
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