"High-Yield, Low-Cost Apartment Management: Unconventional Know-How Boasting a 95% Occupancy Rate" Hiroyuki Kato Price: ¥1500 Like new, in excellent condition. Low-Cost Apartment Management Starting Without Debt Hiroyuki Kato Price: ¥1500 With CD A set of two popular books by Mr. Hiroyuki Kato. Both are out-of-print and highly sought-after, making them rare finds.