Coba jelasin Buku dari Handi Irawan Djuwadi dong

Irawan, Handi (2022). 10 Prinsip Kepuasan Pelanggan . Elex Media Komputindo. ISBN 979203241X

Irawan, Handi (2002). Winning Strategy . Gramedia Pustaka Utama. ISBN 9789792200089

Irawan, Handi (2003). Indonesian Customer Satisfaction . Elex Media Komputindo. ISBN 9792047964

Irawan, Handi (2007). Smarter Marketing Moves . Elex Media Komputindo. ISBN 9789792703313

Kontributor dalam buku Christopher H. Lovelock, Paul G. Patterson, Rhett H. Walker (2007). Services Marketing: An Asia-Pacific and Australian Perspectives . Pearson Education. ISBN 9780733986789

Irawan D., Handi (2016). 3 Rules for Success in Building Top Brands. Publishing One. ISBN 9786029735376

Irawan D., Handi (2018). Dinamika Spiritualitas Generasi Muda Kristen Indonesia. Yayasan Bilangan Research Center. ISBN 9786025224300

Irawan D., Handi (2020). Kunci Pertumbuhan Gereja Di Indonesia. Yayasan Bilangan Research Center. ISBN 9786025224317

Irawan D., Handi (2021). Senyum Pelanggan Senyumku Juga. Publishing One. ISBN 9786026400048