he was internationally known as the author of Sentence Patterns in Indonesian (1978, 1993) and Vocabulary Building in Indonesian ( Psikolinguistik: Pengantar Pemahaman Bahasa Manusia
Dardjowidjojo’s text is highly regarded for its accessibility and local relevance, which set it apart from many Western-centric textbooks Indonesian Context: psikolinguistik soenjono dardjowidjojo pdf
Read recent theses (Skripsi from Pendidikan Bahasa Inggris departments) that cite him. These theses will quote the relevant paragraphs from Dardjowidjojo. You can then use those quotes and cite the original book (secondary citation). he was internationally known as the author of
Look for his specific examples, such as the "Echa" case study, which illustrates speech development in Indonesian-speaking children. such as the "Echa" case study