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                              Arvind Sharma, "A comment on Śaṃkara's commentary on Bhagavadgītā 18.1", JBRS 58, 1972, 171-182. Also PURB 5.1, 1974, 53-64. Also IIJ 17, 1975, 183-194. Reprinted in his Textual Studies in Hinduism (New Delhi 1980), 103-120
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                              379.12.52 Arvind Sharma, "A comment on Śaṃkara's commentary on Bhagavadgītā 18.1", JBRS 58, 1972, 171-182. Also PURB 5.1, 1974, 53-64. Also IIJ 17, 1975, 183-194. Reprinted in his Textual Studies in Hinduism (New Delhi 1980), 103-120
References
Source refers to  (1)