@book{58776,
	author = {उपकार प्रकाशन,},
	title = {प्रतियोगिता दर्पण.},
	publisher = {उपकार प्रकाशन,},
	year = {2026-},
	address = {आगरा :},
	note = {Editor: Jain, Rahul.},
	url = {https://www.pdgroup.in}
}