Williams, M. A., & Penman, D. (2023). Deeper mindfulness: The new way to rediscover calm in a chaotic world (First edition.). Balance, Hachette Book Group.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रWilliams, Mark A., और Danny Penman. Deeper Mindfulness: The New Way to Rediscover Calm in a Chaotic World. First edition. New York, NY: Balance, Hachette Book Group, 2023.
एमएलए (8वां संस्करण) प्रशस्ति पत्रWilliams, Mark A., और Danny Penman. Deeper Mindfulness: The New Way to Rediscover Calm in a Chaotic World. First edition. Balance, Hachette Book Group, 2023.
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