1 GODIN, Seth The dip : the extraordinary benefits of knowing when to quit (and when to stick) / Seth Godin. - London : Piatkus, 2007. - 1 GODIN the
2 PRICE, Ian Head start : build a resilient mindset so you can achieve your goals / Ian Price. -First edition. Harlow, England : Pearson, 2018. - 1 PRICE hea