Untuk memasuki Zona Ikhlas, Erbe menyarankan brainwave management atau pengaturan gelombang otak agar mendapatkan gelombang yang sesuai dengan gelombang di Zona Ikhlas tersebut. Bila direkam dengan alat perekam gelombang otak, EEG (elektroensefalogram), otak terlihat memancarkan gelombang sesuai kondisi jiwa seseorang.
The present series is geared to the needs of the scientist of administrator in the pharmaceutical industry or allied fields wishing to gain additional knowledge of the quality assurance function. These volumes should also prove useful to those who are specialists in one aspect of quality assurance, but have not had the opportunity to deal in depth with the other important areas of this broad fu…