To watch through verified sources, you have several official streaming and digital options that offer the authentic Indonesian dubbing. Verified Official Platforms
This "local flavor" is why fans are desperate to find verified full episodes that preserve this specific audio track, rather than watching the English version with Indonesian subtitles.
If you are looking for free, high-quality, and verified content, the Nickelodeon Bahasa YouTube channel
You can find verified, full episodes of SpongeBob SquarePants in Bahasa Indonesia through several official platforms. Official Streaming Platforms