I was bought his second book, Dua Tangis dan Ribuan Tawa. He was published the first titled Ganti Hati but I'm exciting to buy this one :)
"Karyawan adalah konsumen internal yang sesekali harus diperlakukan seperti raja."
"Employees are internal customers, occasionally need to be treated like a king."
That's one of my favorite sentence in his Dua Tangis dan Ribuan Tawa :) Wanna meet him, really.