Ojha, G. K. (1951). Universal self Hindi teacher: A simple, straight and scientific system to learn Hindi ; a standard hand book of self tuition in Hindi through the medium of English (revised edition.). Universal Publication.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रOjha, Gopesh Kumar. Universal Self Hindi Teacher: A Simple, Straight and Scientific System to Learn Hindi ; a Standard Hand Book of Self Tuition in Hindi Through the Medium of English. revised edition. Delhi: Universal Publication, 1951.
एमएलए (8वां संस्करण) प्रशस्ति पत्रOjha, Gopesh Kumar. Universal Self Hindi Teacher: A Simple, Straight and Scientific System to Learn Hindi ; a Standard Hand Book of Self Tuition in Hindi Through the Medium of English. revised edition. Universal Publication, 1951.
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